Home / 10,959.90-16,439.85-3,168.72

Finding the Fourth Proportional to 10,959.90, 16,439.85 and 3,168.72

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Solution

The fourth proportional to 10,959.90, 16,439.85 and 3,168.72 is: 4,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.90 : 16,439.85 = 3,168.72 : x
  2. Step 2: Convert to fraction form
    10,959.90/16,439.85 = 3,168.72/x
  3. Step 3: Cross multiply
    10,959.90x = 16,439.85 × 3,168.72
  4. Step 4: Simplify right side
    10,959.90x = 52,093,281.49
  5. Step 5: Solve for x
    x = 52,093,281.49/10,959.90
  6. Step 6: Final answer
    x = 4,753.08

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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.