Home / 12,487.79-17,232.86-6,822.56

Finding the Fourth Proportional to 12,487.79, 17,232.86 and 6,822.56

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Solution

The fourth proportional to 12,487.79, 17,232.86 and 6,822.56 is: 9,414.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.79 : 17,232.86 = 6,822.56 : x
  2. Step 2: Convert to fraction form
    12,487.79/17,232.86 = 6,822.56/x
  3. Step 3: Cross multiply
    12,487.79x = 17,232.86 × 6,822.56
  4. Step 4: Simplify right side
    12,487.79x = 117,572,281.46
  5. Step 5: Solve for x
    x = 117,572,281.46/12,487.79
  6. Step 6: Final answer
    x = 9,414.98

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Similar ratio
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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.