Home / 8,557.12-11,809.62-5,199.16

Finding the Fourth Proportional to 8,557.12, 11,809.62 and 5,199.16

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Solution

The fourth proportional to 8,557.12, 11,809.62 and 5,199.16 is: 7,175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.12 : 11,809.62 = 5,199.16 : x
  2. Step 2: Convert to fraction form
    8,557.12/11,809.62 = 5,199.16/x
  3. Step 3: Cross multiply
    8,557.12x = 11,809.62 × 5,199.16
  4. Step 4: Simplify right side
    8,557.12x = 61,400,103.92
  5. Step 5: Solve for x
    x = 61,400,103.92/8,557.12
  6. Step 6: Final answer
    x = 7,175.32

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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.