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Finding the Fourth Proportional to 8,445.49, 11,658.07 and 7,559.76

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Solution

The fourth proportional to 8,445.49, 11,658.07 and 7,559.76 is: 10,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.49 : 11,658.07 = 7,559.76 : x
  2. Step 2: Convert to fraction form
    8,445.49/11,658.07 = 7,559.76/x
  3. Step 3: Cross multiply
    8,445.49x = 11,658.07 × 7,559.76
  4. Step 4: Simplify right side
    8,445.49x = 88,132,173.46
  5. Step 5: Solve for x
    x = 88,132,173.46/8,445.49
  6. Step 6: Final answer
    x = 10,435.41

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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.