Home / 8,324.36-12,488.40-3,130.28

Finding the Fourth Proportional to 8,324.36, 12,488.40 and 3,130.28

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Solution

The fourth proportional to 8,324.36, 12,488.40 and 3,130.28 is: 4,696.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.36 : 12,488.40 = 3,130.28 : x
  2. Step 2: Convert to fraction form
    8,324.36/12,488.40 = 3,130.28/x
  3. Step 3: Cross multiply
    8,324.36x = 12,488.40 × 3,130.28
  4. Step 4: Simplify right side
    8,324.36x = 39,092,188.75
  5. Step 5: Solve for x
    x = 39,092,188.75/8,324.36
  6. Step 6: Final answer
    x = 4,696.12

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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.