Home / 14,787.27-20,406.33-8,072.91

Finding the Fourth Proportional to 14,787.27, 20,406.33 and 8,072.91

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Solution

The fourth proportional to 14,787.27, 20,406.33 and 8,072.91 is: 11,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.27 : 20,406.33 = 8,072.91 : x
  2. Step 2: Convert to fraction form
    14,787.27/20,406.33 = 8,072.91/x
  3. Step 3: Cross multiply
    14,787.27x = 20,406.33 × 8,072.91
  4. Step 4: Simplify right side
    14,787.27x = 164,738,465.52
  5. Step 5: Solve for x
    x = 164,738,465.52/14,787.27
  6. Step 6: Final answer
    x = 11,140.56

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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.