Home / 8,838.40-13,260.48-3,909.28

Finding the Fourth Proportional to 8,838.40, 13,260.48 and 3,909.28

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Solution

The fourth proportional to 8,838.40, 13,260.48 and 3,909.28 is: 5,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.40 : 13,260.48 = 3,909.28 : x
  2. Step 2: Convert to fraction form
    8,838.40/13,260.48 = 3,909.28/x
  3. Step 3: Cross multiply
    8,838.40x = 13,260.48 × 3,909.28
  4. Step 4: Simplify right side
    8,838.40x = 51,838,929.25
  5. Step 5: Solve for x
    x = 51,838,929.25/8,838.40
  6. Step 6: Final answer
    x = 5,865.19

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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.