Home / 10,742.13-16,112.54-6,387.30

Finding the Fourth Proportional to 10,742.13, 16,112.54 and 6,387.30

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Solution

The fourth proportional to 10,742.13, 16,112.54 and 6,387.30 is: 9,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.13 : 16,112.54 = 6,387.30 : x
  2. Step 2: Convert to fraction form
    10,742.13/16,112.54 = 6,387.30/x
  3. Step 3: Cross multiply
    10,742.13x = 16,112.54 × 6,387.30
  4. Step 4: Simplify right side
    10,742.13x = 102,915,546.18
  5. Step 5: Solve for x
    x = 102,915,546.18/10,742.13
  6. Step 6: Final answer
    x = 9,580.56

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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.