Home / 18,711.81-25,820.46-10,327.77

Finding the Fourth Proportional to 18,711.81, 25,820.46 and 10,327.77

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Solution

The fourth proportional to 18,711.81, 25,820.46 and 10,327.77 is: 14,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.81 : 25,820.46 = 10,327.77 : x
  2. Step 2: Convert to fraction form
    18,711.81/25,820.46 = 10,327.77/x
  3. Step 3: Cross multiply
    18,711.81x = 25,820.46 × 10,327.77
  4. Step 4: Simplify right side
    18,711.81x = 266,667,772.17
  5. Step 5: Solve for x
    x = 266,667,772.17/18,711.81
  6. Step 6: Final answer
    x = 14,251.31

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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.