Home / 12,279.59-16,952.28-8,267.54

Finding the Fourth Proportional to 12,279.59, 16,952.28 and 8,267.54

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Solution

The fourth proportional to 12,279.59, 16,952.28 and 8,267.54 is: 11,413.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.59 : 16,952.28 = 8,267.54 : x
  2. Step 2: Convert to fraction form
    12,279.59/16,952.28 = 8,267.54/x
  3. Step 3: Cross multiply
    12,279.59x = 16,952.28 × 8,267.54
  4. Step 4: Simplify right side
    12,279.59x = 140,153,652.99
  5. Step 5: Solve for x
    x = 140,153,652.99/12,279.59
  6. Step 6: Final answer
    x = 11,413.54

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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.