Home / 16,866.80-25,307.40-8,097.20

Finding the Fourth Proportional to 16,866.80, 25,307.40 and 8,097.20

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Solution

The fourth proportional to 16,866.80, 25,307.40 and 8,097.20 is: 12,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,866.80 : 25,307.40 = 8,097.20 : x
  2. Step 2: Convert to fraction form
    16,866.80/25,307.40 = 8,097.20/x
  3. Step 3: Cross multiply
    16,866.80x = 25,307.40 × 8,097.20
  4. Step 4: Simplify right side
    16,866.80x = 204,919,079.28
  5. Step 5: Solve for x
    x = 204,919,079.28/16,866.80
  6. Step 6: Final answer
    x = 12,149.26

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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.