Home / 14,979.52-20,672.04-8,692.30

Finding the Fourth Proportional to 14,979.52, 20,672.04 and 8,692.30

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Solution

The fourth proportional to 14,979.52, 20,672.04 and 8,692.30 is: 11,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.52 : 20,672.04 = 8,692.30 : x
  2. Step 2: Convert to fraction form
    14,979.52/20,672.04 = 8,692.30/x
  3. Step 3: Cross multiply
    14,979.52x = 20,672.04 × 8,692.30
  4. Step 4: Simplify right side
    14,979.52x = 179,687,573.29
  5. Step 5: Solve for x
    x = 179,687,573.29/14,979.52
  6. Step 6: Final answer
    x = 11,995.55

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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.