Home / 13,189.07-18,201.15-8,153.17

Finding the Fourth Proportional to 13,189.07, 18,201.15 and 8,153.17

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Solution

The fourth proportional to 13,189.07, 18,201.15 and 8,153.17 is: 11,251.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.07 : 18,201.15 = 8,153.17 : x
  2. Step 2: Convert to fraction form
    13,189.07/18,201.15 = 8,153.17/x
  3. Step 3: Cross multiply
    13,189.07x = 18,201.15 × 8,153.17
  4. Step 4: Simplify right side
    13,189.07x = 148,397,024.64
  5. Step 5: Solve for x
    x = 148,397,024.64/13,189.07
  6. Step 6: Final answer
    x = 11,251.51

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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.