Home / 7,869.97-11,810.42-5,089.73

Finding the Fourth Proportional to 7,869.97, 11,810.42 and 5,089.73

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Solution

The fourth proportional to 7,869.97, 11,810.42 and 5,089.73 is: 7,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.97 : 11,810.42 = 5,089.73 : x
  2. Step 2: Convert to fraction form
    7,869.97/11,810.42 = 5,089.73/x
  3. Step 3: Cross multiply
    7,869.97x = 11,810.42 × 5,089.73
  4. Step 4: Simplify right side
    7,869.97x = 60,111,823.54
  5. Step 5: Solve for x
    x = 60,111,823.54/7,869.97
  6. Step 6: Final answer
    x = 7,638.13

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1.5x scale

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.