Home / 9,966.40-14,921.91-5,021.04

Finding the Fourth Proportional to 9,966.40, 14,921.91 and 5,021.04

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Solution

The fourth proportional to 9,966.40, 14,921.91 and 5,021.04 is: 7,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.40 : 14,921.91 = 5,021.04 : x
  2. Step 2: Convert to fraction form
    9,966.40/14,921.91 = 5,021.04/x
  3. Step 3: Cross multiply
    9,966.40x = 14,921.91 × 5,021.04
  4. Step 4: Simplify right side
    9,966.40x = 74,923,506.99
  5. Step 5: Solve for x
    x = 74,923,506.99/9,966.40
  6. Step 6: Final answer
    x = 7,517.61

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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.