Home / 9,157.73-12,638.12-5,381.10

Finding the Fourth Proportional to 9,157.73, 12,638.12 and 5,381.10

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Solution

The fourth proportional to 9,157.73, 12,638.12 and 5,381.10 is: 7,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.73 : 12,638.12 = 5,381.10 : x
  2. Step 2: Convert to fraction form
    9,157.73/12,638.12 = 5,381.10/x
  3. Step 3: Cross multiply
    9,157.73x = 12,638.12 × 5,381.10
  4. Step 4: Simplify right side
    9,157.73x = 68,006,960.63
  5. Step 5: Solve for x
    x = 68,006,960.63/9,157.73
  6. Step 6: Final answer
    x = 7,426.19

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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.