Home / 9,660.60-13,331.61-5,628.42

Finding the Fourth Proportional to 9,660.60, 13,331.61 and 5,628.42

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Solution

The fourth proportional to 9,660.60, 13,331.61 and 5,628.42 is: 7,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.60 : 13,331.61 = 5,628.42 : x
  2. Step 2: Convert to fraction form
    9,660.60/13,331.61 = 5,628.42/x
  3. Step 3: Cross multiply
    9,660.60x = 13,331.61 × 5,628.42
  4. Step 4: Simplify right side
    9,660.60x = 75,035,900.36
  5. Step 5: Solve for x
    x = 75,035,900.36/9,660.60
  6. Step 6: Final answer
    x = 7,767.21

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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.