Home / 13,720.56-20,589.24-5,929.20

Finding the Fourth Proportional to 13,720.56, 20,589.24 and 5,929.20

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Solution

The fourth proportional to 13,720.56, 20,589.24 and 5,929.20 is: 8,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.56 : 20,589.24 = 5,929.20 : x
  2. Step 2: Convert to fraction form
    13,720.56/20,589.24 = 5,929.20/x
  3. Step 3: Cross multiply
    13,720.56x = 20,589.24 × 5,929.20
  4. Step 4: Simplify right side
    13,720.56x = 122,077,721.81
  5. Step 5: Solve for x
    x = 122,077,721.81/13,720.56
  6. Step 6: Final answer
    x = 8,897.43

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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.