Home / 11,688.48-17,531.28-5,113.44

Finding the Fourth Proportional to 11,688.48, 17,531.28 and 5,113.44

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Solution

The fourth proportional to 11,688.48, 17,531.28 and 5,113.44 is: 7,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.48 : 17,531.28 = 5,113.44 : x
  2. Step 2: Convert to fraction form
    11,688.48/17,531.28 = 5,113.44/x
  3. Step 3: Cross multiply
    11,688.48x = 17,531.28 × 5,113.44
  4. Step 4: Simplify right side
    11,688.48x = 89,645,148.40
  5. Step 5: Solve for x
    x = 89,645,148.40/11,688.48
  6. Step 6: Final answer
    x = 7,669.53

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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.