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Finding the Fourth Proportional to 12,737.25, 17,579.07 and 7,148.25

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Solution

The fourth proportional to 12,737.25, 17,579.07 and 7,148.25 is: 9,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.25 : 17,579.07 = 7,148.25 : x
  2. Step 2: Convert to fraction form
    12,737.25/17,579.07 = 7,148.25/x
  3. Step 3: Cross multiply
    12,737.25x = 17,579.07 × 7,148.25
  4. Step 4: Simplify right side
    12,737.25x = 125,659,587.13
  5. Step 5: Solve for x
    x = 125,659,587.13/12,737.25
  6. Step 6: Final answer
    x = 9,865.52

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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.