Home / 10,620.71-15,917.19-4,373.58

Finding the Fourth Proportional to 10,620.71, 15,917.19 and 4,373.58

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Solution

The fourth proportional to 10,620.71, 15,917.19 and 4,373.58 is: 6,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.71 : 15,917.19 = 4,373.58 : x
  2. Step 2: Convert to fraction form
    10,620.71/15,917.19 = 4,373.58/x
  3. Step 3: Cross multiply
    10,620.71x = 15,917.19 × 4,373.58
  4. Step 4: Simplify right side
    10,620.71x = 69,615,103.84
  5. Step 5: Solve for x
    x = 69,615,103.84/10,620.71
  6. Step 6: Final answer
    x = 6,554.66

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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.