Home / 9,966.15-14,921.54-5,020.79

Finding the Fourth Proportional to 9,966.15, 14,921.54 and 5,020.79

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Solution

The fourth proportional to 9,966.15, 14,921.54 and 5,020.79 is: 7,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.15 : 14,921.54 = 5,020.79 : x
  2. Step 2: Convert to fraction form
    9,966.15/14,921.54 = 5,020.79/x
  3. Step 3: Cross multiply
    9,966.15x = 14,921.54 × 5,020.79
  4. Step 4: Simplify right side
    9,966.15x = 74,917,893.71
  5. Step 5: Solve for x
    x = 74,917,893.71/9,966.15
  6. Step 6: Final answer
    x = 7,517.24

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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.