Home / 18,501.66-25,532.29-10,003.78

Finding the Fourth Proportional to 18,501.66, 25,532.29 and 10,003.78

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Solution

The fourth proportional to 18,501.66, 25,532.29 and 10,003.78 is: 13,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.66 : 25,532.29 = 10,003.78 : x
  2. Step 2: Convert to fraction form
    18,501.66/25,532.29 = 10,003.78/x
  3. Step 3: Cross multiply
    18,501.66x = 25,532.29 × 10,003.78
  4. Step 4: Simplify right side
    18,501.66x = 255,419,442.04
  5. Step 5: Solve for x
    x = 255,419,442.04/18,501.66
  6. Step 6: Final answer
    x = 13,805.22

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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.