Home / 8,686.11-11,976.08-5,886.75

Finding the Fourth Proportional to 8,686.11, 11,976.08 and 5,886.75

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Solution

The fourth proportional to 8,686.11, 11,976.08 and 5,886.75 is: 8,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.11 : 11,976.08 = 5,886.75 : x
  2. Step 2: Convert to fraction form
    8,686.11/11,976.08 = 5,886.75/x
  3. Step 3: Cross multiply
    8,686.11x = 11,976.08 × 5,886.75
  4. Step 4: Simplify right side
    8,686.11x = 70,500,159.51
  5. Step 5: Solve for x
    x = 70,500,159.51/8,686.11
  6. Step 6: Final answer
    x = 8,116.42

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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.