Home / 8,020.32-11,066.40-5,899.20

Finding the Fourth Proportional to 8,020.32, 11,066.40 and 5,899.20

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Solution

The fourth proportional to 8,020.32, 11,066.40 and 5,899.20 is: 8,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.32 : 11,066.40 = 5,899.20 : x
  2. Step 2: Convert to fraction form
    8,020.32/11,066.40 = 5,899.20/x
  3. Step 3: Cross multiply
    8,020.32x = 11,066.40 × 5,899.20
  4. Step 4: Simplify right side
    8,020.32x = 65,282,906.88
  5. Step 5: Solve for x
    x = 65,282,906.88/8,020.32
  6. Step 6: Final answer
    x = 8,139.69

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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.