Home / 15,115.14-22,677.48-12,330.81

Finding the Fourth Proportional to 15,115.14, 22,677.48 and 12,330.81

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Solution

The fourth proportional to 15,115.14, 22,677.48 and 12,330.81 is: 18,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.14 : 22,677.48 = 12,330.81 : x
  2. Step 2: Convert to fraction form
    15,115.14/22,677.48 = 12,330.81/x
  3. Step 3: Cross multiply
    15,115.14x = 22,677.48 × 12,330.81
  4. Step 4: Simplify right side
    15,115.14x = 279,631,697.16
  5. Step 5: Solve for x
    x = 279,631,697.16/15,115.14
  6. Step 6: Final answer
    x = 18,500.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.