Home / 9,372.90-12,934.40-5,181.14

Finding the Fourth Proportional to 9,372.90, 12,934.40 and 5,181.14

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Solution

The fourth proportional to 9,372.90, 12,934.40 and 5,181.14 is: 7,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.90 : 12,934.40 = 5,181.14 : x
  2. Step 2: Convert to fraction form
    9,372.90/12,934.40 = 5,181.14/x
  3. Step 3: Cross multiply
    9,372.90x = 12,934.40 × 5,181.14
  4. Step 4: Simplify right side
    9,372.90x = 67,014,937.22
  5. Step 5: Solve for x
    x = 67,014,937.22/9,372.90
  6. Step 6: Final answer
    x = 7,149.86

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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.