Home / 12,587.15-17,372.78-9,597.64

Finding the Fourth Proportional to 12,587.15, 17,372.78 and 9,597.64

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Solution

The fourth proportional to 12,587.15, 17,372.78 and 9,597.64 is: 13,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.15 : 17,372.78 = 9,597.64 : x
  2. Step 2: Convert to fraction form
    12,587.15/17,372.78 = 9,597.64/x
  3. Step 3: Cross multiply
    12,587.15x = 17,372.78 × 9,597.64
  4. Step 4: Simplify right side
    12,587.15x = 166,737,640.25
  5. Step 5: Solve for x
    x = 166,737,640.25/12,587.15
  6. Step 6: Final answer
    x = 13,246.66

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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.