Home / 18,671.69-25,766.85-10,173.78

Finding the Fourth Proportional to 18,671.69, 25,766.85 and 10,173.78

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Solution

The fourth proportional to 18,671.69, 25,766.85 and 10,173.78 is: 14,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.69 : 25,766.85 = 10,173.78 : x
  2. Step 2: Convert to fraction form
    18,671.69/25,766.85 = 10,173.78/x
  3. Step 3: Cross multiply
    18,671.69x = 25,766.85 × 10,173.78
  4. Step 4: Simplify right side
    18,671.69x = 262,146,263.19
  5. Step 5: Solve for x
    x = 262,146,263.19/18,671.69
  6. Step 6: Final answer
    x = 14,039.78

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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.