Home / 18,267.36-25,207.12-10,309.11

Finding the Fourth Proportional to 18,267.36, 25,207.12 and 10,309.11

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Solution

The fourth proportional to 18,267.36, 25,207.12 and 10,309.11 is: 14,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.36 : 25,207.12 = 10,309.11 : x
  2. Step 2: Convert to fraction form
    18,267.36/25,207.12 = 10,309.11/x
  3. Step 3: Cross multiply
    18,267.36x = 25,207.12 × 10,309.11
  4. Step 4: Simplify right side
    18,267.36x = 259,862,972.86
  5. Step 5: Solve for x
    x = 259,862,972.86/18,267.36
  6. Step 6: Final answer
    x = 14,225.54

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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.