Home / 9,115.46-12,579.26-5,082.24

Finding the Fourth Proportional to 9,115.46, 12,579.26 and 5,082.24

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Solution

The fourth proportional to 9,115.46, 12,579.26 and 5,082.24 is: 7,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.46 : 12,579.26 = 5,082.24 : x
  2. Step 2: Convert to fraction form
    9,115.46/12,579.26 = 5,082.24/x
  3. Step 3: Cross multiply
    9,115.46x = 12,579.26 × 5,082.24
  4. Step 4: Simplify right side
    9,115.46x = 63,930,818.34
  5. Step 5: Solve for x
    x = 63,930,818.34/9,115.46
  6. Step 6: Final answer
    x = 7,013.45

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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.