Home / 12,587.96-17,369.70-7,280.84

Finding the Fourth Proportional to 12,587.96, 17,369.70 and 7,280.84

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Solution

The fourth proportional to 12,587.96, 17,369.70 and 7,280.84 is: 10,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.96 : 17,369.70 = 7,280.84 : x
  2. Step 2: Convert to fraction form
    12,587.96/17,369.70 = 7,280.84/x
  3. Step 3: Cross multiply
    12,587.96x = 17,369.70 × 7,280.84
  4. Step 4: Simplify right side
    12,587.96x = 126,466,006.55
  5. Step 5: Solve for x
    x = 126,466,006.55/12,587.96
  6. Step 6: Final answer
    x = 10,046.58

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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.