Home / 11,873.42-16,387.33-6,840.55

Finding the Fourth Proportional to 11,873.42, 16,387.33 and 6,840.55

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Solution

The fourth proportional to 11,873.42, 16,387.33 and 6,840.55 is: 9,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.42 : 16,387.33 = 6,840.55 : x
  2. Step 2: Convert to fraction form
    11,873.42/16,387.33 = 6,840.55/x
  3. Step 3: Cross multiply
    11,873.42x = 16,387.33 × 6,840.55
  4. Step 4: Simplify right side
    11,873.42x = 112,098,268.29
  5. Step 5: Solve for x
    x = 112,098,268.29/11,873.42
  6. Step 6: Final answer
    x = 9,441.11

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1.5x scale

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.