Home / 13,418.84-18,511.56-9,442.14

Finding the Fourth Proportional to 13,418.84, 18,511.56 and 9,442.14

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Solution

The fourth proportional to 13,418.84, 18,511.56 and 9,442.14 is: 13,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.84 : 18,511.56 = 9,442.14 : x
  2. Step 2: Convert to fraction form
    13,418.84/18,511.56 = 9,442.14/x
  3. Step 3: Cross multiply
    13,418.84x = 18,511.56 × 9,442.14
  4. Step 4: Simplify right side
    13,418.84x = 174,788,741.14
  5. Step 5: Solve for x
    x = 174,788,741.14/13,418.84
  6. Step 6: Final answer
    x = 13,025.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.