Home / 12,607.12-17,397.88-7,229.75

Finding the Fourth Proportional to 12,607.12, 17,397.88 and 7,229.75

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Solution

The fourth proportional to 12,607.12, 17,397.88 and 7,229.75 is: 9,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.12 : 17,397.88 = 7,229.75 : x
  2. Step 2: Convert to fraction form
    12,607.12/17,397.88 = 7,229.75/x
  3. Step 3: Cross multiply
    12,607.12x = 17,397.88 × 7,229.75
  4. Step 4: Simplify right side
    12,607.12x = 125,782,322.93
  5. Step 5: Solve for x
    x = 125,782,322.93/12,607.12
  6. Step 6: Final answer
    x = 9,977.09

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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.