Home / 13,445.92-20,136-11,608.84

Finding the Fourth Proportional to 13,445.92, 20,136 and 11,608.84

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Solution

The fourth proportional to 13,445.92, 20,136 and 11,608.84 is: 17,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.92 : 20,136 = 11,608.84 : x
  2. Step 2: Convert to fraction form
    13,445.92/20,136 = 11,608.84/x
  3. Step 3: Cross multiply
    13,445.92x = 20,136 × 11,608.84
  4. Step 4: Simplify right side
    13,445.92x = 233,755,602.24
  5. Step 5: Solve for x
    x = 233,755,602.24/13,445.92
  6. Step 6: Final answer
    x = 17,384.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.