Home / 11,688.13-17,521.76-4,290.87

Finding the Fourth Proportional to 11,688.13, 17,521.76 and 4,290.87

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Solution

The fourth proportional to 11,688.13, 17,521.76 and 4,290.87 is: 6,432.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.13 : 17,521.76 = 4,290.87 : x
  2. Step 2: Convert to fraction form
    11,688.13/17,521.76 = 4,290.87/x
  3. Step 3: Cross multiply
    11,688.13x = 17,521.76 × 4,290.87
  4. Step 4: Simplify right side
    11,688.13x = 75,183,594.33
  5. Step 5: Solve for x
    x = 75,183,594.33/11,688.13
  6. Step 6: Final answer
    x = 6,432.47

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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.