Home / 8,065.62-11,120.12-5,228.02

Finding the Fourth Proportional to 8,065.62, 11,120.12 and 5,228.02

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Solution

The fourth proportional to 8,065.62, 11,120.12 and 5,228.02 is: 7,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.62 : 11,120.12 = 5,228.02 : x
  2. Step 2: Convert to fraction form
    8,065.62/11,120.12 = 5,228.02/x
  3. Step 3: Cross multiply
    8,065.62x = 11,120.12 × 5,228.02
  4. Step 4: Simplify right side
    8,065.62x = 58,136,209.76
  5. Step 5: Solve for x
    x = 58,136,209.76/8,065.62
  6. Step 6: Final answer
    x = 7,207.90

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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.