Home / 8,979.84-13,464-4,817.28

Finding the Fourth Proportional to 8,979.84, 13,464 and 4,817.28

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Solution

The fourth proportional to 8,979.84, 13,464 and 4,817.28 is: 7,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.84 : 13,464 = 4,817.28 : x
  2. Step 2: Convert to fraction form
    8,979.84/13,464 = 4,817.28/x
  3. Step 3: Cross multiply
    8,979.84x = 13,464 × 4,817.28
  4. Step 4: Simplify right side
    8,979.84x = 64,859,857.92
  5. Step 5: Solve for x
    x = 64,859,857.92/8,979.84
  6. Step 6: Final answer
    x = 7,222.83

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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.