Home / 18,515.52-25,550.78-10,560.31

Finding the Fourth Proportional to 18,515.52, 25,550.78 and 10,560.31

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Solution

The fourth proportional to 18,515.52, 25,550.78 and 10,560.31 is: 14,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.52 : 25,550.78 = 10,560.31 : x
  2. Step 2: Convert to fraction form
    18,515.52/25,550.78 = 10,560.31/x
  3. Step 3: Cross multiply
    18,515.52x = 25,550.78 × 10,560.31
  4. Step 4: Simplify right side
    18,515.52x = 269,824,120.07
  5. Step 5: Solve for x
    x = 269,824,120.07/18,515.52
  6. Step 6: Final answer
    x = 14,572.86

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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.