Home / 11,118.86-15,356.62-7,575.92

Finding the Fourth Proportional to 11,118.86, 15,356.62 and 7,575.92

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Solution

The fourth proportional to 11,118.86, 15,356.62 and 7,575.92 is: 10,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.86 : 15,356.62 = 7,575.92 : x
  2. Step 2: Convert to fraction form
    11,118.86/15,356.62 = 7,575.92/x
  3. Step 3: Cross multiply
    11,118.86x = 15,356.62 × 7,575.92
  4. Step 4: Simplify right side
    11,118.86x = 116,340,428.87
  5. Step 5: Solve for x
    x = 116,340,428.87/11,118.86
  6. Step 6: Final answer
    x = 10,463.35

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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.