Home / 8,638.19-12,946.62-4,475.81

Finding the Fourth Proportional to 8,638.19, 12,946.62 and 4,475.81

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Solution

The fourth proportional to 8,638.19, 12,946.62 and 4,475.81 is: 6,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.19 : 12,946.62 = 4,475.81 : x
  2. Step 2: Convert to fraction form
    8,638.19/12,946.62 = 4,475.81/x
  3. Step 3: Cross multiply
    8,638.19x = 12,946.62 × 4,475.81
  4. Step 4: Simplify right side
    8,638.19x = 57,946,546.53
  5. Step 5: Solve for x
    x = 57,946,546.53/8,638.19
  6. Step 6: Final answer
    x = 6,708.18

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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.