Home / 7,914.42-10,921.14-4,376.70

Finding the Fourth Proportional to 7,914.42, 10,921.14 and 4,376.70

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Solution

The fourth proportional to 7,914.42, 10,921.14 and 4,376.70 is: 6,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.42 : 10,921.14 = 4,376.70 : x
  2. Step 2: Convert to fraction form
    7,914.42/10,921.14 = 4,376.70/x
  3. Step 3: Cross multiply
    7,914.42x = 10,921.14 × 4,376.70
  4. Step 4: Simplify right side
    7,914.42x = 47,798,553.44
  5. Step 5: Solve for x
    x = 47,798,553.44/7,914.42
  6. Step 6: Final answer
    x = 6,039.43

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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.