Home / 18,823.86-25,979.55-10,865.94

Finding the Fourth Proportional to 18,823.86, 25,979.55 and 10,865.94

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Solution

The fourth proportional to 18,823.86, 25,979.55 and 10,865.94 is: 14,996.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.86 : 25,979.55 = 10,865.94 : x
  2. Step 2: Convert to fraction form
    18,823.86/25,979.55 = 10,865.94/x
  3. Step 3: Cross multiply
    18,823.86x = 25,979.55 × 10,865.94
  4. Step 4: Simplify right side
    18,823.86x = 282,292,231.53
  5. Step 5: Solve for x
    x = 282,292,231.53/18,823.86
  6. Step 6: Final answer
    x = 14,996.51

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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.