Home / 10,984.38-15,157.85-6,508.55

Finding the Fourth Proportional to 10,984.38, 15,157.85 and 6,508.55

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Solution

The fourth proportional to 10,984.38, 15,157.85 and 6,508.55 is: 8,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,984.38 : 15,157.85 = 6,508.55 : x
  2. Step 2: Convert to fraction form
    10,984.38/15,157.85 = 6,508.55/x
  3. Step 3: Cross multiply
    10,984.38x = 15,157.85 × 6,508.55
  4. Step 4: Simplify right side
    10,984.38x = 98,655,516.29
  5. Step 5: Solve for x
    x = 98,655,516.29/10,984.38
  6. Step 6: Final answer
    x = 8,981.44

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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.