Home / 15,110.82-20,852.10-8,395.98

Finding the Fourth Proportional to 15,110.82, 20,852.10 and 8,395.98

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Solution

The fourth proportional to 15,110.82, 20,852.10 and 8,395.98 is: 11,585.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.82 : 20,852.10 = 8,395.98 : x
  2. Step 2: Convert to fraction form
    15,110.82/20,852.10 = 8,395.98/x
  3. Step 3: Cross multiply
    15,110.82x = 20,852.10 × 8,395.98
  4. Step 4: Simplify right side
    15,110.82x = 175,073,814.56
  5. Step 5: Solve for x
    x = 175,073,814.56/15,110.82
  6. Step 6: Final answer
    x = 11,585.99

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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.