Home / 11,320.31-15,621.86-6,284.52

Finding the Fourth Proportional to 11,320.31, 15,621.86 and 6,284.52

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Solution

The fourth proportional to 11,320.31, 15,621.86 and 6,284.52 is: 8,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.31 : 15,621.86 = 6,284.52 : x
  2. Step 2: Convert to fraction form
    11,320.31/15,621.86 = 6,284.52/x
  3. Step 3: Cross multiply
    11,320.31x = 15,621.86 × 6,284.52
  4. Step 4: Simplify right side
    11,320.31x = 98,175,891.61
  5. Step 5: Solve for x
    x = 98,175,891.61/11,320.31
  6. Step 6: Final answer
    x = 8,672.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.