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Finding the Fourth Proportional to 11,329.68, 15,636.02 and 6,854.54

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Solution

The fourth proportional to 11,329.68, 15,636.02 and 6,854.54 is: 9,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.68 : 15,636.02 = 6,854.54 : x
  2. Step 2: Convert to fraction form
    11,329.68/15,636.02 = 6,854.54/x
  3. Step 3: Cross multiply
    11,329.68x = 15,636.02 × 6,854.54
  4. Step 4: Simplify right side
    11,329.68x = 107,177,650.63
  5. Step 5: Solve for x
    x = 107,177,650.63/11,329.68
  6. Step 6: Final answer
    x = 9,459.90

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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.