Home / 8,217.18-12,312.81-3,283.74

Finding the Fourth Proportional to 8,217.18, 12,312.81 and 3,283.74

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Solution

The fourth proportional to 8,217.18, 12,312.81 and 3,283.74 is: 4,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.18 : 12,312.81 = 3,283.74 : x
  2. Step 2: Convert to fraction form
    8,217.18/12,312.81 = 3,283.74/x
  3. Step 3: Cross multiply
    8,217.18x = 12,312.81 × 3,283.74
  4. Step 4: Simplify right side
    8,217.18x = 40,432,066.71
  5. Step 5: Solve for x
    x = 40,432,066.71/8,217.18
  6. Step 6: Final answer
    x = 4,920.43

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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.