Home / 12,424.89-17,124.21-8,635.92

Finding the Fourth Proportional to 12,424.89, 17,124.21 and 8,635.92

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Solution

The fourth proportional to 12,424.89, 17,124.21 and 8,635.92 is: 11,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.89 : 17,124.21 = 8,635.92 : x
  2. Step 2: Convert to fraction form
    12,424.89/17,124.21 = 8,635.92/x
  3. Step 3: Cross multiply
    12,424.89x = 17,124.21 × 8,635.92
  4. Step 4: Simplify right side
    12,424.89x = 147,883,243.41
  5. Step 5: Solve for x
    x = 147,883,243.41/12,424.89
  6. Step 6: Final answer
    x = 11,902.17

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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.