Home / 12,281.18-16,951.65-10,620.44

Finding the Fourth Proportional to 12,281.18, 16,951.65 and 10,620.44

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Solution

The fourth proportional to 12,281.18, 16,951.65 and 10,620.44 is: 14,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.18 : 16,951.65 = 10,620.44 : x
  2. Step 2: Convert to fraction form
    12,281.18/16,951.65 = 10,620.44/x
  3. Step 3: Cross multiply
    12,281.18x = 16,951.65 × 10,620.44
  4. Step 4: Simplify right side
    12,281.18x = 180,033,896.97
  5. Step 5: Solve for x
    x = 180,033,896.97/12,281.18
  6. Step 6: Final answer
    x = 14,659.33

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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.