Home / 13,505.04-20,257.56-5,713.92

Finding the Fourth Proportional to 13,505.04, 20,257.56 and 5,713.92

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Solution

The fourth proportional to 13,505.04, 20,257.56 and 5,713.92 is: 8,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.04 : 20,257.56 = 5,713.92 : x
  2. Step 2: Convert to fraction form
    13,505.04/20,257.56 = 5,713.92/x
  3. Step 3: Cross multiply
    13,505.04x = 20,257.56 × 5,713.92
  4. Step 4: Simplify right side
    13,505.04x = 115,750,077.24
  5. Step 5: Solve for x
    x = 115,750,077.24/13,505.04
  6. Step 6: Final answer
    x = 8,570.88

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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.