Home / 12,405.67-18,566.92-10,184.38

Finding the Fourth Proportional to 12,405.67, 18,566.92 and 10,184.38

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Solution

The fourth proportional to 12,405.67, 18,566.92 and 10,184.38 is: 15,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.67 : 18,566.92 = 10,184.38 : x
  2. Step 2: Convert to fraction form
    12,405.67/18,566.92 = 10,184.38/x
  3. Step 3: Cross multiply
    12,405.67x = 18,566.92 × 10,184.38
  4. Step 4: Simplify right side
    12,405.67x = 189,092,568.71
  5. Step 5: Solve for x
    x = 189,092,568.71/12,405.67
  6. Step 6: Final answer
    x = 15,242.43

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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.