Home / 11,543.30-15,928.80-6,508.76

Finding the Fourth Proportional to 11,543.30, 15,928.80 and 6,508.76

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Solution

The fourth proportional to 11,543.30, 15,928.80 and 6,508.76 is: 8,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.30 : 15,928.80 = 6,508.76 : x
  2. Step 2: Convert to fraction form
    11,543.30/15,928.80 = 6,508.76/x
  3. Step 3: Cross multiply
    11,543.30x = 15,928.80 × 6,508.76
  4. Step 4: Simplify right side
    11,543.30x = 103,676,736.29
  5. Step 5: Solve for x
    x = 103,676,736.29/11,543.30
  6. Step 6: Final answer
    x = 8,981.55

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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.