Home / 13,712.53-20,554.95-5,398.38

Finding the Fourth Proportional to 13,712.53, 20,554.95 and 5,398.38

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Solution

The fourth proportional to 13,712.53, 20,554.95 and 5,398.38 is: 8,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.53 : 20,554.95 = 5,398.38 : x
  2. Step 2: Convert to fraction form
    13,712.53/20,554.95 = 5,398.38/x
  3. Step 3: Cross multiply
    13,712.53x = 20,554.95 × 5,398.38
  4. Step 4: Simplify right side
    13,712.53x = 110,963,508.06
  5. Step 5: Solve for x
    x = 110,963,508.06/13,712.53
  6. Step 6: Final answer
    x = 8,092.12

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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.