Home / 12,487.06-17,229.81-7,702.48

Finding the Fourth Proportional to 12,487.06, 17,229.81 and 7,702.48

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Solution

The fourth proportional to 12,487.06, 17,229.81 and 7,702.48 is: 10,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.06 : 17,229.81 = 7,702.48 : x
  2. Step 2: Convert to fraction form
    12,487.06/17,229.81 = 7,702.48/x
  3. Step 3: Cross multiply
    12,487.06x = 17,229.81 × 7,702.48
  4. Step 4: Simplify right side
    12,487.06x = 132,712,266.93
  5. Step 5: Solve for x
    x = 132,712,266.93/12,487.06
  6. Step 6: Final answer
    x = 10,627.98

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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.