Home / 12,460.20-17,196.64-7,154.90

Finding the Fourth Proportional to 12,460.20, 17,196.64 and 7,154.90

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Solution

The fourth proportional to 12,460.20, 17,196.64 and 7,154.90 is: 9,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.20 : 17,196.64 = 7,154.90 : x
  2. Step 2: Convert to fraction form
    12,460.20/17,196.64 = 7,154.90/x
  3. Step 3: Cross multiply
    12,460.20x = 17,196.64 × 7,154.90
  4. Step 4: Simplify right side
    12,460.20x = 123,040,239.54
  5. Step 5: Solve for x
    x = 123,040,239.54/12,460.20
  6. Step 6: Final answer
    x = 9,874.66

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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.