Home / 16,886.40-25,329.60-8,122.20

Finding the Fourth Proportional to 16,886.40, 25,329.60 and 8,122.20

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Solution

The fourth proportional to 16,886.40, 25,329.60 and 8,122.20 is: 12,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,886.40 : 25,329.60 = 8,122.20 : x
  2. Step 2: Convert to fraction form
    16,886.40/25,329.60 = 8,122.20/x
  3. Step 3: Cross multiply
    16,886.40x = 25,329.60 × 8,122.20
  4. Step 4: Simplify right side
    16,886.40x = 205,732,077.12
  5. Step 5: Solve for x
    x = 205,732,077.12/16,886.40
  6. Step 6: Final answer
    x = 12,183.30

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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.