Home / 8,119.74-12,173.13-3,505.98

Finding the Fourth Proportional to 8,119.74, 12,173.13 and 3,505.98

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Solution

The fourth proportional to 8,119.74, 12,173.13 and 3,505.98 is: 5,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.74 : 12,173.13 = 3,505.98 : x
  2. Step 2: Convert to fraction form
    8,119.74/12,173.13 = 3,505.98/x
  3. Step 3: Cross multiply
    8,119.74x = 12,173.13 × 3,505.98
  4. Step 4: Simplify right side
    8,119.74x = 42,678,750.32
  5. Step 5: Solve for x
    x = 42,678,750.32/8,119.74
  6. Step 6: Final answer
    x = 5,256.17

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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.