Home / 11,470.82-15,829.89-6,690.62

Finding the Fourth Proportional to 11,470.82, 15,829.89 and 6,690.62

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Solution

The fourth proportional to 11,470.82, 15,829.89 and 6,690.62 is: 9,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.82 : 15,829.89 = 6,690.62 : x
  2. Step 2: Convert to fraction form
    11,470.82/15,829.89 = 6,690.62/x
  3. Step 3: Cross multiply
    11,470.82x = 15,829.89 × 6,690.62
  4. Step 4: Simplify right side
    11,470.82x = 105,911,818.21
  5. Step 5: Solve for x
    x = 105,911,818.21/11,470.82
  6. Step 6: Final answer
    x = 9,233.16

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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.