Home / 8,118.72-12,177.06-2,275.74

Finding the Fourth Proportional to 8,118.72, 12,177.06 and 2,275.74

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Solution

The fourth proportional to 8,118.72, 12,177.06 and 2,275.74 is: 3,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.72 : 12,177.06 = 2,275.74 : x
  2. Step 2: Convert to fraction form
    8,118.72/12,177.06 = 2,275.74/x
  3. Step 3: Cross multiply
    8,118.72x = 12,177.06 × 2,275.74
  4. Step 4: Simplify right side
    8,118.72x = 27,711,822.52
  5. Step 5: Solve for x
    x = 27,711,822.52/8,118.72
  6. Step 6: Final answer
    x = 3,413.32

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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.