Home / 14,517.36-21,778.20-5,156.59

Finding the Fourth Proportional to 14,517.36, 21,778.20 and 5,156.59

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Solution

The fourth proportional to 14,517.36, 21,778.20 and 5,156.59 is: 7,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,517.36 : 21,778.20 = 5,156.59 : x
  2. Step 2: Convert to fraction form
    14,517.36/21,778.20 = 5,156.59/x
  3. Step 3: Cross multiply
    14,517.36x = 21,778.20 × 5,156.59
  4. Step 4: Simplify right side
    14,517.36x = 112,301,248.34
  5. Step 5: Solve for x
    x = 112,301,248.34/14,517.36
  6. Step 6: Final answer
    x = 7,735.65

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1.5x scale

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.