Home / 15,612.78-23,419.10-3,926

Finding the Fourth Proportional to 15,612.78, 23,419.10 and 3,926

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Solution

The fourth proportional to 15,612.78, 23,419.10 and 3,926 is: 5,888.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.78 : 23,419.10 = 3,926 : x
  2. Step 2: Convert to fraction form
    15,612.78/23,419.10 = 3,926/x
  3. Step 3: Cross multiply
    15,612.78x = 23,419.10 × 3,926
  4. Step 4: Simplify right side
    15,612.78x = 91,943,386.60
  5. Step 5: Solve for x
    x = 91,943,386.60/15,612.78
  6. Step 6: Final answer
    x = 5,888.98

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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.