Home / 12,219.17-16,862.37-6,630.17

Finding the Fourth Proportional to 12,219.17, 16,862.37 and 6,630.17

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Solution

The fourth proportional to 12,219.17, 16,862.37 and 6,630.17 is: 9,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.17 : 16,862.37 = 6,630.17 : x
  2. Step 2: Convert to fraction form
    12,219.17/16,862.37 = 6,630.17/x
  3. Step 3: Cross multiply
    12,219.17x = 16,862.37 × 6,630.17
  4. Step 4: Simplify right side
    12,219.17x = 111,800,379.70
  5. Step 5: Solve for x
    x = 111,800,379.70/12,219.17
  6. Step 6: Final answer
    x = 9,149.59

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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.