Home / 12,355.78-18,510.44-6,108.52

Finding the Fourth Proportional to 12,355.78, 18,510.44 and 6,108.52

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Solution

The fourth proportional to 12,355.78, 18,510.44 and 6,108.52 is: 9,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.78 : 18,510.44 = 6,108.52 : x
  2. Step 2: Convert to fraction form
    12,355.78/18,510.44 = 6,108.52/x
  3. Step 3: Cross multiply
    12,355.78x = 18,510.44 × 6,108.52
  4. Step 4: Simplify right side
    12,355.78x = 113,071,392.95
  5. Step 5: Solve for x
    x = 113,071,392.95/12,355.78
  6. Step 6: Final answer
    x = 9,151.30

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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.