Home / 8,026.60-11,079.74-7,185.78

Finding the Fourth Proportional to 8,026.60, 11,079.74 and 7,185.78

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Solution

The fourth proportional to 8,026.60, 11,079.74 and 7,185.78 is: 9,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,026.60 : 11,079.74 = 7,185.78 : x
  2. Step 2: Convert to fraction form
    8,026.60/11,079.74 = 7,185.78/x
  3. Step 3: Cross multiply
    8,026.60x = 11,079.74 × 7,185.78
  4. Step 4: Simplify right side
    8,026.60x = 79,616,574.10
  5. Step 5: Solve for x
    x = 79,616,574.10/8,026.60
  6. Step 6: Final answer
    x = 9,919.09

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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.