Home / 11,167.08-16,727.40-7,645.20

Finding the Fourth Proportional to 11,167.08, 16,727.40 and 7,645.20

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Solution

The fourth proportional to 11,167.08, 16,727.40 and 7,645.20 is: 11,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.08 : 16,727.40 = 7,645.20 : x
  2. Step 2: Convert to fraction form
    11,167.08/16,727.40 = 7,645.20/x
  3. Step 3: Cross multiply
    11,167.08x = 16,727.40 × 7,645.20
  4. Step 4: Simplify right side
    11,167.08x = 127,884,318.48
  5. Step 5: Solve for x
    x = 127,884,318.48/11,167.08
  6. Step 6: Final answer
    x = 11,451.90

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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.