Home / 18,317.80-27,480.30-6,630.76

Finding the Fourth Proportional to 18,317.80, 27,480.30 and 6,630.76

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Solution

The fourth proportional to 18,317.80, 27,480.30 and 6,630.76 is: 9,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.80 : 27,480.30 = 6,630.76 : x
  2. Step 2: Convert to fraction form
    18,317.80/27,480.30 = 6,630.76/x
  3. Step 3: Cross multiply
    18,317.80x = 27,480.30 × 6,630.76
  4. Step 4: Simplify right side
    18,317.80x = 182,215,274.03
  5. Step 5: Solve for x
    x = 182,215,274.03/18,317.80
  6. Step 6: Final answer
    x = 9,947.44

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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.