Home / 8,343.20-12,515.61-2,643.84

Finding the Fourth Proportional to 8,343.20, 12,515.61 and 2,643.84

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Solution

The fourth proportional to 8,343.20, 12,515.61 and 2,643.84 is: 3,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.20 : 12,515.61 = 2,643.84 : x
  2. Step 2: Convert to fraction form
    8,343.20/12,515.61 = 2,643.84/x
  3. Step 3: Cross multiply
    8,343.20x = 12,515.61 × 2,643.84
  4. Step 4: Simplify right side
    8,343.20x = 33,089,280.26
  5. Step 5: Solve for x
    x = 33,089,280.26/8,343.20
  6. Step 6: Final answer
    x = 3,966.02

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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.