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Finding the Fourth Proportional to 9,250.11, 13,875.17 and 7,860.15

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Solution

The fourth proportional to 9,250.11, 13,875.17 and 7,860.15 is: 11,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,250.11 : 13,875.17 = 7,860.15 : x
  2. Step 2: Convert to fraction form
    9,250.11/13,875.17 = 7,860.15/x
  3. Step 3: Cross multiply
    9,250.11x = 13,875.17 × 7,860.15
  4. Step 4: Simplify right side
    9,250.11x = 109,060,878.17
  5. Step 5: Solve for x
    x = 109,060,878.17/9,250.11
  6. Step 6: Final answer
    x = 11,790.23

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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.