Home / 6,918.05-10,377.04-4,145.55

Finding the Fourth Proportional to 6,918.05, 10,377.04 and 4,145.55

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Solution

The fourth proportional to 6,918.05, 10,377.04 and 4,145.55 is: 6,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.05 : 10,377.04 = 4,145.55 : x
  2. Step 2: Convert to fraction form
    6,918.05/10,377.04 = 4,145.55/x
  3. Step 3: Cross multiply
    6,918.05x = 10,377.04 × 4,145.55
  4. Step 4: Simplify right side
    6,918.05x = 43,018,538.17
  5. Step 5: Solve for x
    x = 43,018,538.17/6,918.05
  6. Step 6: Final answer
    x = 6,218.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.