Home / 16,391.25-22,621.87-9,318.74

Finding the Fourth Proportional to 16,391.25, 22,621.87 and 9,318.74

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Solution

The fourth proportional to 16,391.25, 22,621.87 and 9,318.74 is: 12,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.25 : 22,621.87 = 9,318.74 : x
  2. Step 2: Convert to fraction form
    16,391.25/22,621.87 = 9,318.74/x
  3. Step 3: Cross multiply
    16,391.25x = 22,621.87 × 9,318.74
  4. Step 4: Simplify right side
    16,391.25x = 210,807,324.84
  5. Step 5: Solve for x
    x = 210,807,324.84/16,391.25
  6. Step 6: Final answer
    x = 12,860.97

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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.