Home / 7,113.11-9,816.75-3,926.98

Finding the Fourth Proportional to 7,113.11, 9,816.75 and 3,926.98

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Solution

The fourth proportional to 7,113.11, 9,816.75 and 3,926.98 is: 5,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.11 : 9,816.75 = 3,926.98 : x
  2. Step 2: Convert to fraction form
    7,113.11/9,816.75 = 3,926.98/x
  3. Step 3: Cross multiply
    7,113.11x = 9,816.75 × 3,926.98
  4. Step 4: Simplify right side
    7,113.11x = 38,550,112.20
  5. Step 5: Solve for x
    x = 38,550,112.20/7,113.11
  6. Step 6: Final answer
    x = 5,419.59

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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.