Home / 18,288.47-25,238.13-9,904.97

Finding the Fourth Proportional to 18,288.47, 25,238.13 and 9,904.97

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Solution

The fourth proportional to 18,288.47, 25,238.13 and 9,904.97 is: 13,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.47 : 25,238.13 = 9,904.97 : x
  2. Step 2: Convert to fraction form
    18,288.47/25,238.13 = 9,904.97/x
  3. Step 3: Cross multiply
    18,288.47x = 25,238.13 × 9,904.97
  4. Step 4: Simplify right side
    18,288.47x = 249,982,946.46
  5. Step 5: Solve for x
    x = 249,982,946.46/18,288.47
  6. Step 6: Final answer
    x = 13,668.88

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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.