Home / 8,948.63-13,422.86-5,439.61

Finding the Fourth Proportional to 8,948.63, 13,422.86 and 5,439.61

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Solution

The fourth proportional to 8,948.63, 13,422.86 and 5,439.61 is: 8,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.63 : 13,422.86 = 5,439.61 : x
  2. Step 2: Convert to fraction form
    8,948.63/13,422.86 = 5,439.61/x
  3. Step 3: Cross multiply
    8,948.63x = 13,422.86 × 5,439.61
  4. Step 4: Simplify right side
    8,948.63x = 73,015,140.59
  5. Step 5: Solve for x
    x = 73,015,140.59/8,948.63
  6. Step 6: Final answer
    x = 8,159.36

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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.