Home / 8,215.56-12,319.02-2,948.52

Finding the Fourth Proportional to 8,215.56, 12,319.02 and 2,948.52

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Solution

The fourth proportional to 8,215.56, 12,319.02 and 2,948.52 is: 4,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.56 : 12,319.02 = 2,948.52 : x
  2. Step 2: Convert to fraction form
    8,215.56/12,319.02 = 2,948.52/x
  3. Step 3: Cross multiply
    8,215.56x = 12,319.02 × 2,948.52
  4. Step 4: Simplify right side
    8,215.56x = 36,322,876.85
  5. Step 5: Solve for x
    x = 36,322,876.85/8,215.56
  6. Step 6: Final answer
    x = 4,421.23

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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.