Home / 8,378.29-12,564.46-2,453.55

Finding the Fourth Proportional to 8,378.29, 12,564.46 and 2,453.55

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Solution

The fourth proportional to 8,378.29, 12,564.46 and 2,453.55 is: 3,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.29 : 12,564.46 = 2,453.55 : x
  2. Step 2: Convert to fraction form
    8,378.29/12,564.46 = 2,453.55/x
  3. Step 3: Cross multiply
    8,378.29x = 12,564.46 × 2,453.55
  4. Step 4: Simplify right side
    8,378.29x = 30,827,530.83
  5. Step 5: Solve for x
    x = 30,827,530.83/8,378.29
  6. Step 6: Final answer
    x = 3,679.45

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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.