Home / 10,621.80-15,926.85-5,076.54

Finding the Fourth Proportional to 10,621.80, 15,926.85 and 5,076.54

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Solution

The fourth proportional to 10,621.80, 15,926.85 and 5,076.54 is: 7,612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.80 : 15,926.85 = 5,076.54 : x
  2. Step 2: Convert to fraction form
    10,621.80/15,926.85 = 5,076.54/x
  3. Step 3: Cross multiply
    10,621.80x = 15,926.85 × 5,076.54
  4. Step 4: Simplify right side
    10,621.80x = 80,853,291.10
  5. Step 5: Solve for x
    x = 80,853,291.10/10,621.80
  6. Step 6: Final answer
    x = 7,612.01

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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.