Home / 8,728.54-13,091.51-2,885.20

Finding the Fourth Proportional to 8,728.54, 13,091.51 and 2,885.20

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Solution

The fourth proportional to 8,728.54, 13,091.51 and 2,885.20 is: 4,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.54 : 13,091.51 = 2,885.20 : x
  2. Step 2: Convert to fraction form
    8,728.54/13,091.51 = 2,885.20/x
  3. Step 3: Cross multiply
    8,728.54x = 13,091.51 × 2,885.20
  4. Step 4: Simplify right side
    8,728.54x = 37,771,624.65
  5. Step 5: Solve for x
    x = 37,771,624.65/8,728.54
  6. Step 6: Final answer
    x = 4,327.37

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1.5x scale

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.