Home / 8,147.19-12,221.47-2,601.32

Finding the Fourth Proportional to 8,147.19, 12,221.47 and 2,601.32

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Solution

The fourth proportional to 8,147.19, 12,221.47 and 2,601.32 is: 3,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.19 : 12,221.47 = 2,601.32 : x
  2. Step 2: Convert to fraction form
    8,147.19/12,221.47 = 2,601.32/x
  3. Step 3: Cross multiply
    8,147.19x = 12,221.47 × 2,601.32
  4. Step 4: Simplify right side
    8,147.19x = 31,791,954.34
  5. Step 5: Solve for x
    x = 31,791,954.34/8,147.19
  6. Step 6: Final answer
    x = 3,902.20

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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.