Home / 7,772.10-11,648.40-6,122.13

Finding the Fourth Proportional to 7,772.10, 11,648.40 and 6,122.13

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Solution

The fourth proportional to 7,772.10, 11,648.40 and 6,122.13 is: 9,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.10 : 11,648.40 = 6,122.13 : x
  2. Step 2: Convert to fraction form
    7,772.10/11,648.40 = 6,122.13/x
  3. Step 3: Cross multiply
    7,772.10x = 11,648.40 × 6,122.13
  4. Step 4: Simplify right side
    7,772.10x = 71,313,048.21
  5. Step 5: Solve for x
    x = 71,313,048.21/7,772.10
  6. Step 6: Final answer
    x = 9,175.52

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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.