Home / 13,713.29-20,565.68-4,947.06

Finding the Fourth Proportional to 13,713.29, 20,565.68 and 4,947.06

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Solution

The fourth proportional to 13,713.29, 20,565.68 and 4,947.06 is: 7,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.29 : 20,565.68 = 4,947.06 : x
  2. Step 2: Convert to fraction form
    13,713.29/20,565.68 = 4,947.06/x
  3. Step 3: Cross multiply
    13,713.29x = 20,565.68 × 4,947.06
  4. Step 4: Simplify right side
    13,713.29x = 101,739,652.90
  5. Step 5: Solve for x
    x = 101,739,652.90/13,713.29
  6. Step 6: Final answer
    x = 7,419.06

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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.