Home / 8,315.28-12,473.46-2,768.40

Finding the Fourth Proportional to 8,315.28, 12,473.46 and 2,768.40

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Solution

The fourth proportional to 8,315.28, 12,473.46 and 2,768.40 is: 4,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.28 : 12,473.46 = 2,768.40 : x
  2. Step 2: Convert to fraction form
    8,315.28/12,473.46 = 2,768.40/x
  3. Step 3: Cross multiply
    8,315.28x = 12,473.46 × 2,768.40
  4. Step 4: Simplify right side
    8,315.28x = 34,531,526.66
  5. Step 5: Solve for x
    x = 34,531,526.66/8,315.28
  6. Step 6: Final answer
    x = 4,152.78

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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.