Home / 8,433.29-12,639.31-4,274.35

Finding the Fourth Proportional to 8,433.29, 12,639.31 and 4,274.35

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Solution

The fourth proportional to 8,433.29, 12,639.31 and 4,274.35 is: 6,406.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.29 : 12,639.31 = 4,274.35 : x
  2. Step 2: Convert to fraction form
    8,433.29/12,639.31 = 4,274.35/x
  3. Step 3: Cross multiply
    8,433.29x = 12,639.31 × 4,274.35
  4. Step 4: Simplify right side
    8,433.29x = 54,024,792.41
  5. Step 5: Solve for x
    x = 54,024,792.41/8,433.29
  6. Step 6: Final answer
    x = 6,406.13

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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.