Home / 7,518.61-11,275.58-2,587.15

Finding the Fourth Proportional to 7,518.61, 11,275.58 and 2,587.15

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Solution

The fourth proportional to 7,518.61, 11,275.58 and 2,587.15 is: 3,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.61 : 11,275.58 = 2,587.15 : x
  2. Step 2: Convert to fraction form
    7,518.61/11,275.58 = 2,587.15/x
  3. Step 3: Cross multiply
    7,518.61x = 11,275.58 × 2,587.15
  4. Step 4: Simplify right side
    7,518.61x = 29,171,645.94
  5. Step 5: Solve for x
    x = 29,171,645.94/7,518.61
  6. Step 6: Final answer
    x = 3,879.93

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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.