Home / 13,445.17-20,167.75-4,085.15

Finding the Fourth Proportional to 13,445.17, 20,167.75 and 4,085.15

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Solution

The fourth proportional to 13,445.17, 20,167.75 and 4,085.15 is: 6,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.17 : 20,167.75 = 4,085.15 : x
  2. Step 2: Convert to fraction form
    13,445.17/20,167.75 = 4,085.15/x
  3. Step 3: Cross multiply
    13,445.17x = 20,167.75 × 4,085.15
  4. Step 4: Simplify right side
    13,445.17x = 82,388,301.62
  5. Step 5: Solve for x
    x = 82,388,301.62/13,445.17
  6. Step 6: Final answer
    x = 6,127.72

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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.