Home / 15,290.62-21,101.73-8,576.87

Finding the Fourth Proportional to 15,290.62, 21,101.73 and 8,576.87

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Solution

The fourth proportional to 15,290.62, 21,101.73 and 8,576.87 is: 11,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.62 : 21,101.73 = 8,576.87 : x
  2. Step 2: Convert to fraction form
    15,290.62/21,101.73 = 8,576.87/x
  3. Step 3: Cross multiply
    15,290.62x = 21,101.73 × 8,576.87
  4. Step 4: Simplify right side
    15,290.62x = 180,986,879.90
  5. Step 5: Solve for x
    x = 180,986,879.90/15,290.62
  6. Step 6: Final answer
    x = 11,836.46

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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.