Home / 15,743.13-21,725.52-8,669.53

Finding the Fourth Proportional to 15,743.13, 21,725.52 and 8,669.53

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Solution

The fourth proportional to 15,743.13, 21,725.52 and 8,669.53 is: 11,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.13 : 21,725.52 = 8,669.53 : x
  2. Step 2: Convert to fraction form
    15,743.13/21,725.52 = 8,669.53/x
  3. Step 3: Cross multiply
    15,743.13x = 21,725.52 × 8,669.53
  4. Step 4: Simplify right side
    15,743.13x = 188,350,004.06
  5. Step 5: Solve for x
    x = 188,350,004.06/15,743.13
  6. Step 6: Final answer
    x = 11,963.95

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1.5x scale

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.