Home / 9,821.28-13,553.46-5,629.50

Finding the Fourth Proportional to 9,821.28, 13,553.46 and 5,629.50

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Solution

The fourth proportional to 9,821.28, 13,553.46 and 5,629.50 is: 7,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.28 : 13,553.46 = 5,629.50 : x
  2. Step 2: Convert to fraction form
    9,821.28/13,553.46 = 5,629.50/x
  3. Step 3: Cross multiply
    9,821.28x = 13,553.46 × 5,629.50
  4. Step 4: Simplify right side
    9,821.28x = 76,299,203.07
  5. Step 5: Solve for x
    x = 76,299,203.07/9,821.28
  6. Step 6: Final answer
    x = 7,768.76

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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.