Home / 18,868.86-26,039.52-11,316.42

Finding the Fourth Proportional to 18,868.86, 26,039.52 and 11,316.42

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Solution

The fourth proportional to 18,868.86, 26,039.52 and 11,316.42 is: 15,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.86 : 26,039.52 = 11,316.42 : x
  2. Step 2: Convert to fraction form
    18,868.86/26,039.52 = 11,316.42/x
  3. Step 3: Cross multiply
    18,868.86x = 26,039.52 × 11,316.42
  4. Step 4: Simplify right side
    18,868.86x = 294,674,144.92
  5. Step 5: Solve for x
    x = 294,674,144.92/18,868.86
  6. Step 6: Final answer
    x = 15,616.96

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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.