Home / 9,098.40-13,621.08-5,338.80

Finding the Fourth Proportional to 9,098.40, 13,621.08 and 5,338.80

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Solution

The fourth proportional to 9,098.40, 13,621.08 and 5,338.80 is: 7,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,098.40 : 13,621.08 = 5,338.80 : x
  2. Step 2: Convert to fraction form
    9,098.40/13,621.08 = 5,338.80/x
  3. Step 3: Cross multiply
    9,098.40x = 13,621.08 × 5,338.80
  4. Step 4: Simplify right side
    9,098.40x = 72,720,221.90
  5. Step 5: Solve for x
    x = 72,720,221.90/9,098.40
  6. Step 6: Final answer
    x = 7,992.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.