Home / 12,475.08-18,711.12-5,460

Finding the Fourth Proportional to 12,475.08, 18,711.12 and 5,460

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Solution

The fourth proportional to 12,475.08, 18,711.12 and 5,460 is: 8,189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.08 : 18,711.12 = 5,460 : x
  2. Step 2: Convert to fraction form
    12,475.08/18,711.12 = 5,460/x
  3. Step 3: Cross multiply
    12,475.08x = 18,711.12 × 5,460
  4. Step 4: Simplify right side
    12,475.08x = 102,162,715.20
  5. Step 5: Solve for x
    x = 102,162,715.20/12,475.08
  6. Step 6: Final answer
    x = 8,189.34

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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.