Home / 14,228.87-19,635.89-8,260.79

Finding the Fourth Proportional to 14,228.87, 19,635.89 and 8,260.79

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Solution

The fourth proportional to 14,228.87, 19,635.89 and 8,260.79 is: 11,399.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.87 : 19,635.89 = 8,260.79 : x
  2. Step 2: Convert to fraction form
    14,228.87/19,635.89 = 8,260.79/x
  3. Step 3: Cross multiply
    14,228.87x = 19,635.89 × 8,260.79
  4. Step 4: Simplify right side
    14,228.87x = 162,207,963.75
  5. Step 5: Solve for x
    x = 162,207,963.75/14,228.87
  6. Step 6: Final answer
    x = 11,399.92

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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.