Home / 13,981.64-20,960.94-6,589.58

Finding the Fourth Proportional to 13,981.64, 20,960.94 and 6,589.58

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Solution

The fourth proportional to 13,981.64, 20,960.94 and 6,589.58 is: 9,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.64 : 20,960.94 = 6,589.58 : x
  2. Step 2: Convert to fraction form
    13,981.64/20,960.94 = 6,589.58/x
  3. Step 3: Cross multiply
    13,981.64x = 20,960.94 × 6,589.58
  4. Step 4: Simplify right side
    13,981.64x = 138,123,791.01
  5. Step 5: Solve for x
    x = 138,123,791.01/13,981.64
  6. Step 6: Final answer
    x = 9,878.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.