Home / 12,576.14-18,869.67-8,686.92

Finding the Fourth Proportional to 12,576.14, 18,869.67 and 8,686.92

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Solution

The fourth proportional to 12,576.14, 18,869.67 and 8,686.92 is: 13,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.14 : 18,869.67 = 8,686.92 : x
  2. Step 2: Convert to fraction form
    12,576.14/18,869.67 = 8,686.92/x
  3. Step 3: Cross multiply
    12,576.14x = 18,869.67 × 8,686.92
  4. Step 4: Simplify right side
    12,576.14x = 163,919,313.72
  5. Step 5: Solve for x
    x = 163,919,313.72/12,576.14
  6. Step 6: Final answer
    x = 13,034.16

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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.