Home / 8,948.64-13,424.40-3,105.12

Finding the Fourth Proportional to 8,948.64, 13,424.40 and 3,105.12

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Solution

The fourth proportional to 8,948.64, 13,424.40 and 3,105.12 is: 4,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.64 : 13,424.40 = 3,105.12 : x
  2. Step 2: Convert to fraction form
    8,948.64/13,424.40 = 3,105.12/x
  3. Step 3: Cross multiply
    8,948.64x = 13,424.40 × 3,105.12
  4. Step 4: Simplify right side
    8,948.64x = 41,684,372.93
  5. Step 5: Solve for x
    x = 41,684,372.93/8,948.64
  6. Step 6: Final answer
    x = 4,658.18

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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.