Home / 13,108.04-18,101.12-8,329.56

Finding the Fourth Proportional to 13,108.04, 18,101.12 and 8,329.56

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Solution

The fourth proportional to 13,108.04, 18,101.12 and 8,329.56 is: 11,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.04 : 18,101.12 = 8,329.56 : x
  2. Step 2: Convert to fraction form
    13,108.04/18,101.12 = 8,329.56/x
  3. Step 3: Cross multiply
    13,108.04x = 18,101.12 × 8,329.56
  4. Step 4: Simplify right side
    13,108.04x = 150,774,365.11
  5. Step 5: Solve for x
    x = 150,774,365.11/13,108.04
  6. Step 6: Final answer
    x = 11,502.43

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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.