Home / 16,566.40-22,870.09-12,781.07

Finding the Fourth Proportional to 16,566.40, 22,870.09 and 12,781.07

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Solution

The fourth proportional to 16,566.40, 22,870.09 and 12,781.07 is: 17,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,566.40 : 22,870.09 = 12,781.07 : x
  2. Step 2: Convert to fraction form
    16,566.40/22,870.09 = 12,781.07/x
  3. Step 3: Cross multiply
    16,566.40x = 22,870.09 × 12,781.07
  4. Step 4: Simplify right side
    16,566.40x = 292,304,221.20
  5. Step 5: Solve for x
    x = 292,304,221.20/16,566.40
  6. Step 6: Final answer
    x = 17,644.40

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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.