Home / 15,325.56-21,148.58-9,036.76

Finding the Fourth Proportional to 15,325.56, 21,148.58 and 9,036.76

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Solution

The fourth proportional to 15,325.56, 21,148.58 and 9,036.76 is: 12,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.56 : 21,148.58 = 9,036.76 : x
  2. Step 2: Convert to fraction form
    15,325.56/21,148.58 = 9,036.76/x
  3. Step 3: Cross multiply
    15,325.56x = 21,148.58 × 9,036.76
  4. Step 4: Simplify right side
    15,325.56x = 191,114,641.80
  5. Step 5: Solve for x
    x = 191,114,641.80/15,325.56
  6. Step 6: Final answer
    x = 12,470.32

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Half scale
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Double scale
Find fourth proportional to 15,326.56, 21,149.96 and 9,037.76
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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.