Home / 8,719.85-13,077.46-3,788.33

Finding the Fourth Proportional to 8,719.85, 13,077.46 and 3,788.33

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Solution

The fourth proportional to 8,719.85, 13,077.46 and 3,788.33 is: 5,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.85 : 13,077.46 = 3,788.33 : x
  2. Step 2: Convert to fraction form
    8,719.85/13,077.46 = 3,788.33/x
  3. Step 3: Cross multiply
    8,719.85x = 13,077.46 × 3,788.33
  4. Step 4: Simplify right side
    8,719.85x = 49,541,770.67
  5. Step 5: Solve for x
    x = 49,541,770.67/8,719.85
  6. Step 6: Final answer
    x = 5,681.50

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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.