Home / 8,215.71-12,323.56-1,975.72

Finding the Fourth Proportional to 8,215.71, 12,323.56 and 1,975.72

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Solution

The fourth proportional to 8,215.71, 12,323.56 and 1,975.72 is: 2,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.71 : 12,323.56 = 1,975.72 : x
  2. Step 2: Convert to fraction form
    8,215.71/12,323.56 = 1,975.72/x
  3. Step 3: Cross multiply
    8,215.71x = 12,323.56 × 1,975.72
  4. Step 4: Simplify right side
    8,215.71x = 24,347,921.84
  5. Step 5: Solve for x
    x = 24,347,921.84/8,215.71
  6. Step 6: Final answer
    x = 2,963.58

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Similar ratio
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1.5x scale

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.