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Finding the Fourth Proportional to 5,990.56, 9,018.19 and 5,387.77

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Solution

The fourth proportional to 5,990.56, 9,018.19 and 5,387.77 is: 8,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.56 : 9,018.19 = 5,387.77 : x
  2. Step 2: Convert to fraction form
    5,990.56/9,018.19 = 5,387.77/x
  3. Step 3: Cross multiply
    5,990.56x = 9,018.19 × 5,387.77
  4. Step 4: Simplify right side
    5,990.56x = 48,587,870.51
  5. Step 5: Solve for x
    x = 48,587,870.51/5,990.56
  6. Step 6: Final answer
    x = 8,110.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.