Home / 13,877.49-20,816.43-4,517.56

Finding the Fourth Proportional to 13,877.49, 20,816.43 and 4,517.56

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Solution

The fourth proportional to 13,877.49, 20,816.43 and 4,517.56 is: 6,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.49 : 20,816.43 = 4,517.56 : x
  2. Step 2: Convert to fraction form
    13,877.49/20,816.43 = 4,517.56/x
  3. Step 3: Cross multiply
    13,877.49x = 20,816.43 × 4,517.56
  4. Step 4: Simplify right side
    13,877.49x = 94,039,419.47
  5. Step 5: Solve for x
    x = 94,039,419.47/13,877.49
  6. Step 6: Final answer
    x = 6,776.40

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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.