Home / 13,926.42-19,218.19-7,876.55

Finding the Fourth Proportional to 13,926.42, 19,218.19 and 7,876.55

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Solution

The fourth proportional to 13,926.42, 19,218.19 and 7,876.55 is: 10,869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.42 : 19,218.19 = 7,876.55 : x
  2. Step 2: Convert to fraction form
    13,926.42/19,218.19 = 7,876.55/x
  3. Step 3: Cross multiply
    13,926.42x = 19,218.19 × 7,876.55
  4. Step 4: Simplify right side
    13,926.42x = 151,373,034.44
  5. Step 5: Solve for x
    x = 151,373,034.44/13,926.42
  6. Step 6: Final answer
    x = 10,869.49

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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.