Home / 16,138.86-22,272.20-9,065.13

Finding the Fourth Proportional to 16,138.86, 22,272.20 and 9,065.13

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Solution

The fourth proportional to 16,138.86, 22,272.20 and 9,065.13 is: 12,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,138.86 : 22,272.20 = 9,065.13 : x
  2. Step 2: Convert to fraction form
    16,138.86/22,272.20 = 9,065.13/x
  3. Step 3: Cross multiply
    16,138.86x = 22,272.20 × 9,065.13
  4. Step 4: Simplify right side
    16,138.86x = 201,900,388.39
  5. Step 5: Solve for x
    x = 201,900,388.39/16,138.86
  6. Step 6: Final answer
    x = 12,510.20

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Half scale
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Double scale
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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.