Home / 11,320.86-15,623.79-6,606.66

Finding the Fourth Proportional to 11,320.86, 15,623.79 and 6,606.66

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Solution

The fourth proportional to 11,320.86, 15,623.79 and 6,606.66 is: 9,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.86 : 15,623.79 = 6,606.66 : x
  2. Step 2: Convert to fraction form
    11,320.86/15,623.79 = 6,606.66/x
  3. Step 3: Cross multiply
    11,320.86x = 15,623.79 × 6,606.66
  4. Step 4: Simplify right side
    11,320.86x = 103,221,068.44
  5. Step 5: Solve for x
    x = 103,221,068.44/11,320.86
  6. Step 6: Final answer
    x = 9,117.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.