Home / 8,972.22-12,382.76-5,435.42

Finding the Fourth Proportional to 8,972.22, 12,382.76 and 5,435.42

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Solution

The fourth proportional to 8,972.22, 12,382.76 and 5,435.42 is: 7,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.22 : 12,382.76 = 5,435.42 : x
  2. Step 2: Convert to fraction form
    8,972.22/12,382.76 = 5,435.42/x
  3. Step 3: Cross multiply
    8,972.22x = 12,382.76 × 5,435.42
  4. Step 4: Simplify right side
    8,972.22x = 67,305,501.36
  5. Step 5: Solve for x
    x = 67,305,501.36/8,972.22
  6. Step 6: Final answer
    x = 7,501.54

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1.5x scale

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.