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Finding the Fourth Proportional to 8,715.85, 12,059.54 and 7,599.11

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Solution

The fourth proportional to 8,715.85, 12,059.54 and 7,599.11 is: 10,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.85 : 12,059.54 = 7,599.11 : x
  2. Step 2: Convert to fraction form
    8,715.85/12,059.54 = 7,599.11/x
  3. Step 3: Cross multiply
    8,715.85x = 12,059.54 × 7,599.11
  4. Step 4: Simplify right side
    8,715.85x = 91,641,672.72
  5. Step 5: Solve for x
    x = 91,641,672.72/8,715.85
  6. Step 6: Final answer
    x = 10,514.37

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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.