Home / 16,878.70-25,318.05-13,707.55

Finding the Fourth Proportional to 16,878.70, 25,318.05 and 13,707.55

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Solution

The fourth proportional to 16,878.70, 25,318.05 and 13,707.55 is: 20,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.70 : 25,318.05 = 13,707.55 : x
  2. Step 2: Convert to fraction form
    16,878.70/25,318.05 = 13,707.55/x
  3. Step 3: Cross multiply
    16,878.70x = 25,318.05 × 13,707.55
  4. Step 4: Simplify right side
    16,878.70x = 347,048,436.28
  5. Step 5: Solve for x
    x = 347,048,436.28/16,878.70
  6. Step 6: Final answer
    x = 20,561.33

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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.