Home / 9,628.13-13,287.44-5,647.79

Finding the Fourth Proportional to 9,628.13, 13,287.44 and 5,647.79

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Solution

The fourth proportional to 9,628.13, 13,287.44 and 5,647.79 is: 7,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.13 : 13,287.44 = 5,647.79 : x
  2. Step 2: Convert to fraction form
    9,628.13/13,287.44 = 5,647.79/x
  3. Step 3: Cross multiply
    9,628.13x = 13,287.44 × 5,647.79
  4. Step 4: Simplify right side
    9,628.13x = 75,044,718.10
  5. Step 5: Solve for x
    x = 75,044,718.10/9,628.13
  6. Step 6: Final answer
    x = 7,794.32

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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.