Home / 10,617.48-15,928.79-3,221.51

Finding the Fourth Proportional to 10,617.48, 15,928.79 and 3,221.51

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Solution

The fourth proportional to 10,617.48, 15,928.79 and 3,221.51 is: 4,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.48 : 15,928.79 = 3,221.51 : x
  2. Step 2: Convert to fraction form
    10,617.48/15,928.79 = 3,221.51/x
  3. Step 3: Cross multiply
    10,617.48x = 15,928.79 × 3,221.51
  4. Step 4: Simplify right side
    10,617.48x = 51,314,660.52
  5. Step 5: Solve for x
    x = 51,314,660.52/10,617.48
  6. Step 6: Final answer
    x = 4,833.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.