Home / 8,233.20-11,357.70-5,399.28

Finding the Fourth Proportional to 8,233.20, 11,357.70 and 5,399.28

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Solution

The fourth proportional to 8,233.20, 11,357.70 and 5,399.28 is: 7,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,233.20 : 11,357.70 = 5,399.28 : x
  2. Step 2: Convert to fraction form
    8,233.20/11,357.70 = 5,399.28/x
  3. Step 3: Cross multiply
    8,233.20x = 11,357.70 × 5,399.28
  4. Step 4: Simplify right side
    8,233.20x = 61,323,402.46
  5. Step 5: Solve for x
    x = 61,323,402.46/8,233.20
  6. Step 6: Final answer
    x = 7,448.31

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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.