Home / 16,854.40-25,287.04-5,169.92

Finding the Fourth Proportional to 16,854.40, 25,287.04 and 5,169.92

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Solution

The fourth proportional to 16,854.40, 25,287.04 and 5,169.92 is: 7,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,854.40 : 25,287.04 = 5,169.92 : x
  2. Step 2: Convert to fraction form
    16,854.40/25,287.04 = 5,169.92/x
  3. Step 3: Cross multiply
    16,854.40x = 25,287.04 × 5,169.92
  4. Step 4: Simplify right side
    16,854.40x = 130,731,973.84
  5. Step 5: Solve for x
    x = 130,731,973.84/16,854.40
  6. Step 6: Final answer
    x = 7,756.55

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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.