Home / 15,543.95-21,425.06-11,000.76

Finding the Fourth Proportional to 15,543.95, 21,425.06 and 11,000.76

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Solution

The fourth proportional to 15,543.95, 21,425.06 and 11,000.76 is: 15,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.95 : 21,425.06 = 11,000.76 : x
  2. Step 2: Convert to fraction form
    15,543.95/21,425.06 = 11,000.76/x
  3. Step 3: Cross multiply
    15,543.95x = 21,425.06 × 11,000.76
  4. Step 4: Simplify right side
    15,543.95x = 235,691,948.84
  5. Step 5: Solve for x
    x = 235,691,948.84/15,543.95
  6. Step 6: Final answer
    x = 15,162.94

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Half scale
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Double scale
Find fourth proportional to 15,544.95, 21,426.44 and 11,001.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.