Home / 7,587.15-11,382.98-3,891.98

Finding the Fourth Proportional to 7,587.15, 11,382.98 and 3,891.98

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Solution

The fourth proportional to 7,587.15, 11,382.98 and 3,891.98 is: 5,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.15 : 11,382.98 = 3,891.98 : x
  2. Step 2: Convert to fraction form
    7,587.15/11,382.98 = 3,891.98/x
  3. Step 3: Cross multiply
    7,587.15x = 11,382.98 × 3,891.98
  4. Step 4: Simplify right side
    7,587.15x = 44,302,254.13
  5. Step 5: Solve for x
    x = 44,302,254.13/7,587.15
  6. Step 6: Final answer
    x = 5,839.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.