Home / 11,317.95-16,970.31-3,418.10

Finding the Fourth Proportional to 11,317.95, 16,970.31 and 3,418.10

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Solution

The fourth proportional to 11,317.95, 16,970.31 and 3,418.10 is: 5,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.95 : 16,970.31 = 3,418.10 : x
  2. Step 2: Convert to fraction form
    11,317.95/16,970.31 = 3,418.10/x
  3. Step 3: Cross multiply
    11,317.95x = 16,970.31 × 3,418.10
  4. Step 4: Simplify right side
    11,317.95x = 58,006,216.61
  5. Step 5: Solve for x
    x = 58,006,216.61/11,317.95
  6. Step 6: Final answer
    x = 5,125.15

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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.