Home / 18,795.64-28,206.27-12,132.13

Finding the Fourth Proportional to 18,795.64, 28,206.27 and 12,132.13

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Solution

The fourth proportional to 18,795.64, 28,206.27 and 12,132.13 is: 18,206.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.64 : 28,206.27 = 12,132.13 : x
  2. Step 2: Convert to fraction form
    18,795.64/28,206.27 = 12,132.13/x
  3. Step 3: Cross multiply
    18,795.64x = 28,206.27 × 12,132.13
  4. Step 4: Simplify right side
    18,795.64x = 342,202,134.46
  5. Step 5: Solve for x
    x = 342,202,134.46/18,795.64
  6. Step 6: Final answer
    x = 18,206.46

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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.