Home / 9,906.24-14,857.28-2,979.20

Finding the Fourth Proportional to 9,906.24, 14,857.28 and 2,979.20

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Solution

The fourth proportional to 9,906.24, 14,857.28 and 2,979.20 is: 4,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.24 : 14,857.28 = 2,979.20 : x
  2. Step 2: Convert to fraction form
    9,906.24/14,857.28 = 2,979.20/x
  3. Step 3: Cross multiply
    9,906.24x = 14,857.28 × 2,979.20
  4. Step 4: Simplify right side
    9,906.24x = 44,262,808.58
  5. Step 5: Solve for x
    x = 44,262,808.58/9,906.24
  6. Step 6: Final answer
    x = 4,468.17

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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.