Home / 13,760.35-18,985.86-8,018.80

Finding the Fourth Proportional to 13,760.35, 18,985.86 and 8,018.80

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Solution

The fourth proportional to 13,760.35, 18,985.86 and 8,018.80 is: 11,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.35 : 18,985.86 = 8,018.80 : x
  2. Step 2: Convert to fraction form
    13,760.35/18,985.86 = 8,018.80/x
  3. Step 3: Cross multiply
    13,760.35x = 18,985.86 × 8,018.80
  4. Step 4: Simplify right side
    13,760.35x = 152,243,766.70
  5. Step 5: Solve for x
    x = 152,243,766.70/13,760.35
  6. Step 6: Final answer
    x = 11,063.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.