Home / 15,743.60-21,726.44-8,669.52

Finding the Fourth Proportional to 15,743.60, 21,726.44 and 8,669.52

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Solution

The fourth proportional to 15,743.60, 21,726.44 and 8,669.52 is: 11,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.60 : 21,726.44 = 8,669.52 : x
  2. Step 2: Convert to fraction form
    15,743.60/21,726.44 = 8,669.52/x
  3. Step 3: Cross multiply
    15,743.60x = 21,726.44 × 8,669.52
  4. Step 4: Simplify right side
    15,743.60x = 188,357,806.11
  5. Step 5: Solve for x
    x = 188,357,806.11/15,743.60
  6. Step 6: Final answer
    x = 11,964.09

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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.