Home / 13,507.60-20,255.32-5,712.40

Finding the Fourth Proportional to 13,507.60, 20,255.32 and 5,712.40

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Solution

The fourth proportional to 13,507.60, 20,255.32 and 5,712.40 is: 8,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.60 : 20,255.32 = 5,712.40 : x
  2. Step 2: Convert to fraction form
    13,507.60/20,255.32 = 5,712.40/x
  3. Step 3: Cross multiply
    13,507.60x = 20,255.32 × 5,712.40
  4. Step 4: Simplify right side
    13,507.60x = 115,706,489.97
  5. Step 5: Solve for x
    x = 115,706,489.97/13,507.60
  6. Step 6: Final answer
    x = 8,566.03

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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.