Home / 9,855.27-13,600.40-5,878.68

Finding the Fourth Proportional to 9,855.27, 13,600.40 and 5,878.68

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Solution

The fourth proportional to 9,855.27, 13,600.40 and 5,878.68 is: 8,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.27 : 13,600.40 = 5,878.68 : x
  2. Step 2: Convert to fraction form
    9,855.27/13,600.40 = 5,878.68/x
  3. Step 3: Cross multiply
    9,855.27x = 13,600.40 × 5,878.68
  4. Step 4: Simplify right side
    9,855.27x = 79,952,399.47
  5. Step 5: Solve for x
    x = 79,952,399.47/9,855.27
  6. Step 6: Final answer
    x = 8,112.65

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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.