Home / 13,704.90-20,560.44-4,345.47

Finding the Fourth Proportional to 13,704.90, 20,560.44 and 4,345.47

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Solution

The fourth proportional to 13,704.90, 20,560.44 and 4,345.47 is: 6,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.90 : 20,560.44 = 4,345.47 : x
  2. Step 2: Convert to fraction form
    13,704.90/20,560.44 = 4,345.47/x
  3. Step 3: Cross multiply
    13,704.90x = 20,560.44 × 4,345.47
  4. Step 4: Simplify right side
    13,704.90x = 89,344,775.21
  5. Step 5: Solve for x
    x = 89,344,775.21/13,704.90
  6. Step 6: Final answer
    x = 6,519.18

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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.