Home / 18,291.54-25,242.40-9,908.04

Finding the Fourth Proportional to 18,291.54, 25,242.40 and 9,908.04

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Solution

The fourth proportional to 18,291.54, 25,242.40 and 9,908.04 is: 13,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.54 : 25,242.40 = 9,908.04 : x
  2. Step 2: Convert to fraction form
    18,291.54/25,242.40 = 9,908.04/x
  3. Step 3: Cross multiply
    18,291.54x = 25,242.40 × 9,908.04
  4. Step 4: Simplify right side
    18,291.54x = 250,102,708.90
  5. Step 5: Solve for x
    x = 250,102,708.90/18,291.54
  6. Step 6: Final answer
    x = 13,673.14

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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.