Home / 8,086.40-11,159.04-5,291.84

Finding the Fourth Proportional to 8,086.40, 11,159.04 and 5,291.84

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Solution

The fourth proportional to 8,086.40, 11,159.04 and 5,291.84 is: 7,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.40 : 11,159.04 = 5,291.84 : x
  2. Step 2: Convert to fraction form
    8,086.40/11,159.04 = 5,291.84/x
  3. Step 3: Cross multiply
    8,086.40x = 11,159.04 × 5,291.84
  4. Step 4: Simplify right side
    8,086.40x = 59,051,854.23
  5. Step 5: Solve for x
    x = 59,051,854.23/8,086.40
  6. Step 6: Final answer
    x = 7,302.61

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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.