Home / 8,872.56-12,242.46-5,335.80

Finding the Fourth Proportional to 8,872.56, 12,242.46 and 5,335.80

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Solution

The fourth proportional to 8,872.56, 12,242.46 and 5,335.80 is: 7,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.56 : 12,242.46 = 5,335.80 : x
  2. Step 2: Convert to fraction form
    8,872.56/12,242.46 = 5,335.80/x
  3. Step 3: Cross multiply
    8,872.56x = 12,242.46 × 5,335.80
  4. Step 4: Simplify right side
    8,872.56x = 65,323,318.07
  5. Step 5: Solve for x
    x = 65,323,318.07/8,872.56
  6. Step 6: Final answer
    x = 7,362.40

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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.