Home / 18,212.40-27,322.50-10,318.66

Finding the Fourth Proportional to 18,212.40, 27,322.50 and 10,318.66

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Solution

The fourth proportional to 18,212.40, 27,322.50 and 10,318.66 is: 15,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.40 : 27,322.50 = 10,318.66 : x
  2. Step 2: Convert to fraction form
    18,212.40/27,322.50 = 10,318.66/x
  3. Step 3: Cross multiply
    18,212.40x = 27,322.50 × 10,318.66
  4. Step 4: Simplify right side
    18,212.40x = 281,931,587.85
  5. Step 5: Solve for x
    x = 281,931,587.85/18,212.40
  6. Step 6: Final answer
    x = 15,480.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.