Home / 11,132.51-16,698.15-2,812.55

Finding the Fourth Proportional to 11,132.51, 16,698.15 and 2,812.55

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Solution

The fourth proportional to 11,132.51, 16,698.15 and 2,812.55 is: 4,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.51 : 16,698.15 = 2,812.55 : x
  2. Step 2: Convert to fraction form
    11,132.51/16,698.15 = 2,812.55/x
  3. Step 3: Cross multiply
    11,132.51x = 16,698.15 × 2,812.55
  4. Step 4: Simplify right side
    11,132.51x = 46,964,298.29
  5. Step 5: Solve for x
    x = 46,964,298.29/11,132.51
  6. Step 6: Final answer
    x = 4,218.66

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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.