Home / 12,704.10-17,531.10-7,398.60

Finding the Fourth Proportional to 12,704.10, 17,531.10 and 7,398.60

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Solution

The fourth proportional to 12,704.10, 17,531.10 and 7,398.60 is: 10,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.10 : 17,531.10 = 7,398.60 : x
  2. Step 2: Convert to fraction form
    12,704.10/17,531.10 = 7,398.60/x
  3. Step 3: Cross multiply
    12,704.10x = 17,531.10 × 7,398.60
  4. Step 4: Simplify right side
    12,704.10x = 129,705,596.46
  5. Step 5: Solve for x
    x = 129,705,596.46/12,704.10
  6. Step 6: Final answer
    x = 10,209.74

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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.