Home / 13,553.10-20,331.02-3,693.14

Finding the Fourth Proportional to 13,553.10, 20,331.02 and 3,693.14

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Solution

The fourth proportional to 13,553.10, 20,331.02 and 3,693.14 is: 5,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.10 : 20,331.02 = 3,693.14 : x
  2. Step 2: Convert to fraction form
    13,553.10/20,331.02 = 3,693.14/x
  3. Step 3: Cross multiply
    13,553.10x = 20,331.02 × 3,693.14
  4. Step 4: Simplify right side
    13,553.10x = 75,085,303.20
  5. Step 5: Solve for x
    x = 75,085,303.20/13,553.10
  6. Step 6: Final answer
    x = 5,540.08

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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.