Home / 18,401.12-25,394-10,018.08

Finding the Fourth Proportional to 18,401.12, 25,394 and 10,018.08

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Solution

The fourth proportional to 18,401.12, 25,394 and 10,018.08 is: 13,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401.12 : 25,394 = 10,018.08 : x
  2. Step 2: Convert to fraction form
    18,401.12/25,394 = 10,018.08/x
  3. Step 3: Cross multiply
    18,401.12x = 25,394 × 10,018.08
  4. Step 4: Simplify right side
    18,401.12x = 254,399,123.52
  5. Step 5: Solve for x
    x = 254,399,123.52/18,401.12
  6. Step 6: Final answer
    x = 13,825.20

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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.