Home / 18,681.54-25,778.97-10,722.08

Finding the Fourth Proportional to 18,681.54, 25,778.97 and 10,722.08

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Solution

The fourth proportional to 18,681.54, 25,778.97 and 10,722.08 is: 14,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.54 : 25,778.97 = 10,722.08 : x
  2. Step 2: Convert to fraction form
    18,681.54/25,778.97 = 10,722.08/x
  3. Step 3: Cross multiply
    18,681.54x = 25,778.97 × 10,722.08
  4. Step 4: Simplify right side
    18,681.54x = 276,404,049.76
  5. Step 5: Solve for x
    x = 276,404,049.76/18,681.54
  6. Step 6: Final answer
    x = 14,795.57

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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.