Home / 8,569.51-11,815.80-6,678.97

Finding the Fourth Proportional to 8,569.51, 11,815.80 and 6,678.97

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Solution

The fourth proportional to 8,569.51, 11,815.80 and 6,678.97 is: 9,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,569.51 : 11,815.80 = 6,678.97 : x
  2. Step 2: Convert to fraction form
    8,569.51/11,815.80 = 6,678.97/x
  3. Step 3: Cross multiply
    8,569.51x = 11,815.80 × 6,678.97
  4. Step 4: Simplify right side
    8,569.51x = 78,917,373.73
  5. Step 5: Solve for x
    x = 78,917,373.73/8,569.51
  6. Step 6: Final answer
    x = 9,209.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.