Home / 9,125.12-12,560.13-6,467.92

Finding the Fourth Proportional to 9,125.12, 12,560.13 and 6,467.92

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Solution

The fourth proportional to 9,125.12, 12,560.13 and 6,467.92 is: 8,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.12 : 12,560.13 = 6,467.92 : x
  2. Step 2: Convert to fraction form
    9,125.12/12,560.13 = 6,467.92/x
  3. Step 3: Cross multiply
    9,125.12x = 12,560.13 × 6,467.92
  4. Step 4: Simplify right side
    9,125.12x = 81,237,884.63
  5. Step 5: Solve for x
    x = 81,237,884.63/9,125.12
  6. Step 6: Final answer
    x = 8,902.66

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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.