Home / 10,140.78-15,211.38-4,593.12

Finding the Fourth Proportional to 10,140.78, 15,211.38 and 4,593.12

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Solution

The fourth proportional to 10,140.78, 15,211.38 and 4,593.12 is: 6,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.78 : 15,211.38 = 4,593.12 : x
  2. Step 2: Convert to fraction form
    10,140.78/15,211.38 = 4,593.12/x
  3. Step 3: Cross multiply
    10,140.78x = 15,211.38 × 4,593.12
  4. Step 4: Simplify right side
    10,140.78x = 69,867,693.71
  5. Step 5: Solve for x
    x = 69,867,693.71/10,140.78
  6. Step 6: Final answer
    x = 6,889.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.