Home / 15,743.63-21,723.45-9,456.14

Finding the Fourth Proportional to 15,743.63, 21,723.45 and 9,456.14

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Solution

The fourth proportional to 15,743.63, 21,723.45 and 9,456.14 is: 13,047.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.63 : 21,723.45 = 9,456.14 : x
  2. Step 2: Convert to fraction form
    15,743.63/21,723.45 = 9,456.14/x
  3. Step 3: Cross multiply
    15,743.63x = 21,723.45 × 9,456.14
  4. Step 4: Simplify right side
    15,743.63x = 205,419,984.48
  5. Step 5: Solve for x
    x = 205,419,984.48/15,743.63
  6. Step 6: Final answer
    x = 13,047.82

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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.