Home / 13,738.61-20,607.96-3,877.94

Finding the Fourth Proportional to 13,738.61, 20,607.96 and 3,877.94

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Solution

The fourth proportional to 13,738.61, 20,607.96 and 3,877.94 is: 5,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.61 : 20,607.96 = 3,877.94 : x
  2. Step 2: Convert to fraction form
    13,738.61/20,607.96 = 3,877.94/x
  3. Step 3: Cross multiply
    13,738.61x = 20,607.96 × 3,877.94
  4. Step 4: Simplify right side
    13,738.61x = 79,916,432.40
  5. Step 5: Solve for x
    x = 79,916,432.40/13,738.61
  6. Step 6: Final answer
    x = 5,816.92

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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.