Home / 7,138.29-9,854.15-4,153.04

Finding the Fourth Proportional to 7,138.29, 9,854.15 and 4,153.04

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Solution

The fourth proportional to 7,138.29, 9,854.15 and 4,153.04 is: 5,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.29 : 9,854.15 = 4,153.04 : x
  2. Step 2: Convert to fraction form
    7,138.29/9,854.15 = 4,153.04/x
  3. Step 3: Cross multiply
    7,138.29x = 9,854.15 × 4,153.04
  4. Step 4: Simplify right side
    7,138.29x = 40,924,679.12
  5. Step 5: Solve for x
    x = 40,924,679.12/7,138.29
  6. Step 6: Final answer
    x = 5,733.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.