Home / 8,972.56-12,382.01-4,993.68

Finding the Fourth Proportional to 8,972.56, 12,382.01 and 4,993.68

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Solution

The fourth proportional to 8,972.56, 12,382.01 and 4,993.68 is: 6,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.56 : 12,382.01 = 4,993.68 : x
  2. Step 2: Convert to fraction form
    8,972.56/12,382.01 = 4,993.68/x
  3. Step 3: Cross multiply
    8,972.56x = 12,382.01 × 4,993.68
  4. Step 4: Simplify right side
    8,972.56x = 61,831,746.27
  5. Step 5: Solve for x
    x = 61,831,746.27/8,972.56
  6. Step 6: Final answer
    x = 6,891.20

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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.