Home / 10,447.48-15,634.60-7,489.18

Finding the Fourth Proportional to 10,447.48, 15,634.60 and 7,489.18

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Solution

The fourth proportional to 10,447.48, 15,634.60 and 7,489.18 is: 11,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.48 : 15,634.60 = 7,489.18 : x
  2. Step 2: Convert to fraction form
    10,447.48/15,634.60 = 7,489.18/x
  3. Step 3: Cross multiply
    10,447.48x = 15,634.60 × 7,489.18
  4. Step 4: Simplify right side
    10,447.48x = 117,090,333.63
  5. Step 5: Solve for x
    x = 117,090,333.63/10,447.48
  6. Step 6: Final answer
    x = 11,207.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.