Home / 9,988.64-14,979.28-3,323.92

Finding the Fourth Proportional to 9,988.64, 14,979.28 and 3,323.92

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Solution

The fourth proportional to 9,988.64, 14,979.28 and 3,323.92 is: 4,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.64 : 14,979.28 = 3,323.92 : x
  2. Step 2: Convert to fraction form
    9,988.64/14,979.28 = 3,323.92/x
  3. Step 3: Cross multiply
    9,988.64x = 14,979.28 × 3,323.92
  4. Step 4: Simplify right side
    9,988.64x = 49,789,928.38
  5. Step 5: Solve for x
    x = 49,789,928.38/9,988.64
  6. Step 6: Final answer
    x = 4,984.66

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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.