Home / 16,131.28-22,259.08-9,418.52

Finding the Fourth Proportional to 16,131.28, 22,259.08 and 9,418.52

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Solution

The fourth proportional to 16,131.28, 22,259.08 and 9,418.52 is: 12,996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,131.28 : 22,259.08 = 9,418.52 : x
  2. Step 2: Convert to fraction form
    16,131.28/22,259.08 = 9,418.52/x
  3. Step 3: Cross multiply
    16,131.28x = 22,259.08 × 9,418.52
  4. Step 4: Simplify right side
    16,131.28x = 209,647,590.16
  5. Step 5: Solve for x
    x = 209,647,590.16/16,131.28
  6. Step 6: Final answer
    x = 12,996.34

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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.