Home / 13,381.08-20,068.20-5,489.16

Finding the Fourth Proportional to 13,381.08, 20,068.20 and 5,489.16

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Solution

The fourth proportional to 13,381.08, 20,068.20 and 5,489.16 is: 8,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.08 : 20,068.20 = 5,489.16 : x
  2. Step 2: Convert to fraction form
    13,381.08/20,068.20 = 5,489.16/x
  3. Step 3: Cross multiply
    13,381.08x = 20,068.20 × 5,489.16
  4. Step 4: Simplify right side
    13,381.08x = 110,157,560.71
  5. Step 5: Solve for x
    x = 110,157,560.71/13,381.08
  6. Step 6: Final answer
    x = 8,232.34

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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.