Home / 12,624.12-17,419.28-7,317.90

Finding the Fourth Proportional to 12,624.12, 17,419.28 and 7,317.90

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Solution

The fourth proportional to 12,624.12, 17,419.28 and 7,317.90 is: 10,097.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.12 : 17,419.28 = 7,317.90 : x
  2. Step 2: Convert to fraction form
    12,624.12/17,419.28 = 7,317.90/x
  3. Step 3: Cross multiply
    12,624.12x = 17,419.28 × 7,317.90
  4. Step 4: Simplify right side
    12,624.12x = 127,472,512.52
  5. Step 5: Solve for x
    x = 127,472,512.52/12,624.12
  6. Step 6: Final answer
    x = 10,097.54

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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.