Home / 8,356.36-11,522.40-5,705.20

Finding the Fourth Proportional to 8,356.36, 11,522.40 and 5,705.20

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Solution

The fourth proportional to 8,356.36, 11,522.40 and 5,705.20 is: 7,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.36 : 11,522.40 = 5,705.20 : x
  2. Step 2: Convert to fraction form
    8,356.36/11,522.40 = 5,705.20/x
  3. Step 3: Cross multiply
    8,356.36x = 11,522.40 × 5,705.20
  4. Step 4: Simplify right side
    8,356.36x = 65,737,596.48
  5. Step 5: Solve for x
    x = 65,737,596.48/8,356.36
  6. Step 6: Final answer
    x = 7,866.77

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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.