Home / 9,381.16-12,945.90-5,132.31

Finding the Fourth Proportional to 9,381.16, 12,945.90 and 5,132.31

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Solution

The fourth proportional to 9,381.16, 12,945.90 and 5,132.31 is: 7,082.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.16 : 12,945.90 = 5,132.31 : x
  2. Step 2: Convert to fraction form
    9,381.16/12,945.90 = 5,132.31/x
  3. Step 3: Cross multiply
    9,381.16x = 12,945.90 × 5,132.31
  4. Step 4: Simplify right side
    9,381.16x = 66,442,372.03
  5. Step 5: Solve for x
    x = 66,442,372.03/9,381.16
  6. Step 6: Final answer
    x = 7,082.53

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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.