Home / 7,110.45-9,811.13-6,114.15

Finding the Fourth Proportional to 7,110.45, 9,811.13 and 6,114.15

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Solution

The fourth proportional to 7,110.45, 9,811.13 and 6,114.15 is: 8,436.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.45 : 9,811.13 = 6,114.15 : x
  2. Step 2: Convert to fraction form
    7,110.45/9,811.13 = 6,114.15/x
  3. Step 3: Cross multiply
    7,110.45x = 9,811.13 × 6,114.15
  4. Step 4: Simplify right side
    7,110.45x = 59,986,689.92
  5. Step 5: Solve for x
    x = 59,986,689.92/7,110.45
  6. Step 6: Final answer
    x = 8,436.41

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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.