Home / 10,930.71-15,084.36-6,150.66

Finding the Fourth Proportional to 10,930.71, 15,084.36 and 6,150.66

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Solution

The fourth proportional to 10,930.71, 15,084.36 and 6,150.66 is: 8,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.71 : 15,084.36 = 6,150.66 : x
  2. Step 2: Convert to fraction form
    10,930.71/15,084.36 = 6,150.66/x
  3. Step 3: Cross multiply
    10,930.71x = 15,084.36 × 6,150.66
  4. Step 4: Simplify right side
    10,930.71x = 92,778,769.68
  5. Step 5: Solve for x
    x = 92,778,769.68/10,930.71
  6. Step 6: Final answer
    x = 8,487.90

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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.