Home / 8,065.14-11,124.21-7,404.18

Finding the Fourth Proportional to 8,065.14, 11,124.21 and 7,404.18

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Solution

The fourth proportional to 8,065.14, 11,124.21 and 7,404.18 is: 10,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.14 : 11,124.21 = 7,404.18 : x
  2. Step 2: Convert to fraction form
    8,065.14/11,124.21 = 7,404.18/x
  3. Step 3: Cross multiply
    8,065.14x = 11,124.21 × 7,404.18
  4. Step 4: Simplify right side
    8,065.14x = 82,365,653.20
  5. Step 5: Solve for x
    x = 82,365,653.20/8,065.14
  6. Step 6: Final answer
    x = 10,212.55

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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.