Home / 7,431.17-11,145.85-4,312.88

Finding the Fourth Proportional to 7,431.17, 11,145.85 and 4,312.88

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Solution

The fourth proportional to 7,431.17, 11,145.85 and 4,312.88 is: 6,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.17 : 11,145.85 = 4,312.88 : x
  2. Step 2: Convert to fraction form
    7,431.17/11,145.85 = 4,312.88/x
  3. Step 3: Cross multiply
    7,431.17x = 11,145.85 × 4,312.88
  4. Step 4: Simplify right side
    7,431.17x = 48,070,647.04
  5. Step 5: Solve for x
    x = 48,070,647.04/7,431.17
  6. Step 6: Final answer
    x = 6,468.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.