Home / 18,287.56-25,236.70-9,904

Finding the Fourth Proportional to 18,287.56, 25,236.70 and 9,904

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Solution

The fourth proportional to 18,287.56, 25,236.70 and 9,904 is: 13,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.56 : 25,236.70 = 9,904 : x
  2. Step 2: Convert to fraction form
    18,287.56/25,236.70 = 9,904/x
  3. Step 3: Cross multiply
    18,287.56x = 25,236.70 × 9,904
  4. Step 4: Simplify right side
    18,287.56x = 249,944,276.80
  5. Step 5: Solve for x
    x = 249,944,276.80/18,287.56
  6. Step 6: Final answer
    x = 13,667.45

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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.