Home / 16,129.20-22,259.16-9,057.84

Finding the Fourth Proportional to 16,129.20, 22,259.16 and 9,057.84

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Solution

The fourth proportional to 16,129.20, 22,259.16 and 9,057.84 is: 12,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,129.20 : 22,259.16 = 9,057.84 : x
  2. Step 2: Convert to fraction form
    16,129.20/22,259.16 = 9,057.84/x
  3. Step 3: Cross multiply
    16,129.20x = 22,259.16 × 9,057.84
  4. Step 4: Simplify right side
    16,129.20x = 201,619,909.81
  5. Step 5: Solve for x
    x = 201,619,909.81/16,129.20
  6. Step 6: Final answer
    x = 12,500.30

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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.