Home / 13,909.01-20,864.42-6,117.81

Finding the Fourth Proportional to 13,909.01, 20,864.42 and 6,117.81

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Solution

The fourth proportional to 13,909.01, 20,864.42 and 6,117.81 is: 9,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.01 : 20,864.42 = 6,117.81 : x
  2. Step 2: Convert to fraction form
    13,909.01/20,864.42 = 6,117.81/x
  3. Step 3: Cross multiply
    13,909.01x = 20,864.42 × 6,117.81
  4. Step 4: Simplify right side
    13,909.01x = 127,644,526.73
  5. Step 5: Solve for x
    x = 127,644,526.73/13,909.01
  6. Step 6: Final answer
    x = 9,177.11

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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.