Home / 8,877.17-13,251.75-7,715.23

Finding the Fourth Proportional to 8,877.17, 13,251.75 and 7,715.23

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Solution

The fourth proportional to 8,877.17, 13,251.75 and 7,715.23 is: 11,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.17 : 13,251.75 = 7,715.23 : x
  2. Step 2: Convert to fraction form
    8,877.17/13,251.75 = 7,715.23/x
  3. Step 3: Cross multiply
    8,877.17x = 13,251.75 × 7,715.23
  4. Step 4: Simplify right side
    8,877.17x = 102,240,299.15
  5. Step 5: Solve for x
    x = 102,240,299.15/8,877.17
  6. Step 6: Final answer
    x = 11,517.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.