Home / 11,576.12-15,974.40-6,470.72

Finding the Fourth Proportional to 11,576.12, 15,974.40 and 6,470.72

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Solution

The fourth proportional to 11,576.12, 15,974.40 and 6,470.72 is: 8,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,576.12 : 15,974.40 = 6,470.72 : x
  2. Step 2: Convert to fraction form
    11,576.12/15,974.40 = 6,470.72/x
  3. Step 3: Cross multiply
    11,576.12x = 15,974.40 × 6,470.72
  4. Step 4: Simplify right side
    11,576.12x = 103,365,869.57
  5. Step 5: Solve for x
    x = 103,365,869.57/11,576.12
  6. Step 6: Final answer
    x = 8,929.23

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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.