Home / 16,107.20-22,218.48-10,129.40

Finding the Fourth Proportional to 16,107.20, 22,218.48 and 10,129.40

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Solution

The fourth proportional to 16,107.20, 22,218.48 and 10,129.40 is: 13,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,107.20 : 22,218.48 = 10,129.40 : x
  2. Step 2: Convert to fraction form
    16,107.20/22,218.48 = 10,129.40/x
  3. Step 3: Cross multiply
    16,107.20x = 22,218.48 × 10,129.40
  4. Step 4: Simplify right side
    16,107.20x = 225,059,871.31
  5. Step 5: Solve for x
    x = 225,059,871.31/16,107.20
  6. Step 6: Final answer
    x = 13,972.63

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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.