Home / 15,138.78-22,710.26-4,045.83

Finding the Fourth Proportional to 15,138.78, 22,710.26 and 4,045.83

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Solution

The fourth proportional to 15,138.78, 22,710.26 and 4,045.83 is: 6,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.78 : 22,710.26 = 4,045.83 : x
  2. Step 2: Convert to fraction form
    15,138.78/22,710.26 = 4,045.83/x
  3. Step 3: Cross multiply
    15,138.78x = 22,710.26 × 4,045.83
  4. Step 4: Simplify right side
    15,138.78x = 91,881,851.22
  5. Step 5: Solve for x
    x = 91,881,851.22/15,138.78
  6. Step 6: Final answer
    x = 6,069.30

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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.