Home / 7,914.75-10,922.54-5,125.11

Finding the Fourth Proportional to 7,914.75, 10,922.54 and 5,125.11

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Solution

The fourth proportional to 7,914.75, 10,922.54 and 5,125.11 is: 7,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.75 : 10,922.54 = 5,125.11 : x
  2. Step 2: Convert to fraction form
    7,914.75/10,922.54 = 5,125.11/x
  3. Step 3: Cross multiply
    7,914.75x = 10,922.54 × 5,125.11
  4. Step 4: Simplify right side
    7,914.75x = 55,979,193.35
  5. Step 5: Solve for x
    x = 55,979,193.35/7,914.75
  6. Step 6: Final answer
    x = 7,072.77

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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.