Home / 18,896.88-28,349.40-5,750.28

Finding the Fourth Proportional to 18,896.88, 28,349.40 and 5,750.28

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Solution

The fourth proportional to 18,896.88, 28,349.40 and 5,750.28 is: 8,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.88 : 28,349.40 = 5,750.28 : x
  2. Step 2: Convert to fraction form
    18,896.88/28,349.40 = 5,750.28/x
  3. Step 3: Cross multiply
    18,896.88x = 28,349.40 × 5,750.28
  4. Step 4: Simplify right side
    18,896.88x = 163,016,987.83
  5. Step 5: Solve for x
    x = 163,016,987.83/18,896.88
  6. Step 6: Final answer
    x = 8,626.66

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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.