Home / 7,149.36-10,675.14-6,404.16

Finding the Fourth Proportional to 7,149.36, 10,675.14 and 6,404.16

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Solution

The fourth proportional to 7,149.36, 10,675.14 and 6,404.16 is: 9,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.36 : 10,675.14 = 6,404.16 : x
  2. Step 2: Convert to fraction form
    7,149.36/10,675.14 = 6,404.16/x
  3. Step 3: Cross multiply
    7,149.36x = 10,675.14 × 6,404.16
  4. Step 4: Simplify right side
    7,149.36x = 68,365,304.58
  5. Step 5: Solve for x
    x = 68,365,304.58/7,149.36
  6. Step 6: Final answer
    x = 9,562.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.