Home / 16,866.56-25,297.66-5,178.80

Finding the Fourth Proportional to 16,866.56, 25,297.66 and 5,178.80

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Solution

The fourth proportional to 16,866.56, 25,297.66 and 5,178.80 is: 7,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,866.56 : 25,297.66 = 5,178.80 : x
  2. Step 2: Convert to fraction form
    16,866.56/25,297.66 = 5,178.80/x
  3. Step 3: Cross multiply
    16,866.56x = 25,297.66 × 5,178.80
  4. Step 4: Simplify right side
    16,866.56x = 131,011,521.61
  5. Step 5: Solve for x
    x = 131,011,521.61/16,866.56
  6. Step 6: Final answer
    x = 7,767.53

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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.