Home / 8,387.40-11,554.61-5,864.79

Finding the Fourth Proportional to 8,387.40, 11,554.61 and 5,864.79

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Solution

The fourth proportional to 8,387.40, 11,554.61 and 5,864.79 is: 8,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.40 : 11,554.61 = 5,864.79 : x
  2. Step 2: Convert to fraction form
    8,387.40/11,554.61 = 5,864.79/x
  3. Step 3: Cross multiply
    8,387.40x = 11,554.61 × 5,864.79
  4. Step 4: Simplify right side
    8,387.40x = 67,765,361.18
  5. Step 5: Solve for x
    x = 67,765,361.18/8,387.40
  6. Step 6: Final answer
    x = 8,079.42

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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.