Home / 18,287.38-25,237.07-10,330.78

Finding the Fourth Proportional to 18,287.38, 25,237.07 and 10,330.78

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Solution

The fourth proportional to 18,287.38, 25,237.07 and 10,330.78 is: 14,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.38 : 25,237.07 = 10,330.78 : x
  2. Step 2: Convert to fraction form
    18,287.38/25,237.07 = 10,330.78/x
  3. Step 3: Cross multiply
    18,287.38x = 25,237.07 × 10,330.78
  4. Step 4: Simplify right side
    18,287.38x = 260,718,618.01
  5. Step 5: Solve for x
    x = 260,718,618.01/18,287.38
  6. Step 6: Final answer
    x = 14,256.75

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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.