Home / 7,911.62-10,918.25-4,375.05

Finding the Fourth Proportional to 7,911.62, 10,918.25 and 4,375.05

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Solution

The fourth proportional to 7,911.62, 10,918.25 and 4,375.05 is: 6,037.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.62 : 10,918.25 = 4,375.05 : x
  2. Step 2: Convert to fraction form
    7,911.62/10,918.25 = 4,375.05/x
  3. Step 3: Cross multiply
    7,911.62x = 10,918.25 × 4,375.05
  4. Step 4: Simplify right side
    7,911.62x = 47,767,867.79
  5. Step 5: Solve for x
    x = 47,767,867.79/7,911.62
  6. Step 6: Final answer
    x = 6,037.69

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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.