Home / 15,609.28-21,542.92-8,804.70

Finding the Fourth Proportional to 15,609.28, 21,542.92 and 8,804.70

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Solution

The fourth proportional to 15,609.28, 21,542.92 and 8,804.70 is: 12,151.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.28 : 21,542.92 = 8,804.70 : x
  2. Step 2: Convert to fraction form
    15,609.28/21,542.92 = 8,804.70/x
  3. Step 3: Cross multiply
    15,609.28x = 21,542.92 × 8,804.70
  4. Step 4: Simplify right side
    15,609.28x = 189,678,986.88
  5. Step 5: Solve for x
    x = 189,678,986.88/15,609.28
  6. Step 6: Final answer
    x = 12,151.68

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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.