Home / 11,718.16-17,572.80-3,818.60

Finding the Fourth Proportional to 11,718.16, 17,572.80 and 3,818.60

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Solution

The fourth proportional to 11,718.16, 17,572.80 and 3,818.60 is: 5,726.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.16 : 17,572.80 = 3,818.60 : x
  2. Step 2: Convert to fraction form
    11,718.16/17,572.80 = 3,818.60/x
  3. Step 3: Cross multiply
    11,718.16x = 17,572.80 × 3,818.60
  4. Step 4: Simplify right side
    11,718.16x = 67,103,494.08
  5. Step 5: Solve for x
    x = 67,103,494.08/11,718.16
  6. Step 6: Final answer
    x = 5,726.46

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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.