Home / 9,628.80-13,287.18-5,649.60

Finding the Fourth Proportional to 9,628.80, 13,287.18 and 5,649.60

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Solution

The fourth proportional to 9,628.80, 13,287.18 and 5,649.60 is: 7,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.80 : 13,287.18 = 5,649.60 : x
  2. Step 2: Convert to fraction form
    9,628.80/13,287.18 = 5,649.60/x
  3. Step 3: Cross multiply
    9,628.80x = 13,287.18 × 5,649.60
  4. Step 4: Simplify right side
    9,628.80x = 75,067,252.13
  5. Step 5: Solve for x
    x = 75,067,252.13/9,628.80
  6. Step 6: Final answer
    x = 7,796.12

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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.