Home / 8,623.28-12,951.32-5,359.17

Finding the Fourth Proportional to 8,623.28, 12,951.32 and 5,359.17

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Solution

The fourth proportional to 8,623.28, 12,951.32 and 5,359.17 is: 8,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.28 : 12,951.32 = 5,359.17 : x
  2. Step 2: Convert to fraction form
    8,623.28/12,951.32 = 5,359.17/x
  3. Step 3: Cross multiply
    8,623.28x = 12,951.32 × 5,359.17
  4. Step 4: Simplify right side
    8,623.28x = 69,408,298.81
  5. Step 5: Solve for x
    x = 69,408,298.81/8,623.28
  6. Step 6: Final answer
    x = 8,048.95

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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.