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Finding the Fourth Proportional to 11,468.08, 15,829.31 and 7,489.81

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Solution

The fourth proportional to 11,468.08, 15,829.31 and 7,489.81 is: 10,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,468.08 : 15,829.31 = 7,489.81 : x
  2. Step 2: Convert to fraction form
    11,468.08/15,829.31 = 7,489.81/x
  3. Step 3: Cross multiply
    11,468.08x = 15,829.31 × 7,489.81
  4. Step 4: Simplify right side
    11,468.08x = 118,558,524.33
  5. Step 5: Solve for x
    x = 118,558,524.33/11,468.08
  6. Step 6: Final answer
    x = 10,338.13

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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.