Home / 18,871.16-26,035.55-11,319.94

Finding the Fourth Proportional to 18,871.16, 26,035.55 and 11,319.94

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Solution

The fourth proportional to 18,871.16, 26,035.55 and 11,319.94 is: 15,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.16 : 26,035.55 = 11,319.94 : x
  2. Step 2: Convert to fraction form
    18,871.16/26,035.55 = 11,319.94/x
  3. Step 3: Cross multiply
    18,871.16x = 26,035.55 × 11,319.94
  4. Step 4: Simplify right side
    18,871.16x = 294,720,863.87
  5. Step 5: Solve for x
    x = 294,720,863.87/18,871.16
  6. Step 6: Final answer
    x = 15,617.53

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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.