Home / 18,911.90-26,099.13-10,414.39

Finding the Fourth Proportional to 18,911.90, 26,099.13 and 10,414.39

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Solution

The fourth proportional to 18,911.90, 26,099.13 and 10,414.39 is: 14,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.90 : 26,099.13 = 10,414.39 : x
  2. Step 2: Convert to fraction form
    18,911.90/26,099.13 = 10,414.39/x
  3. Step 3: Cross multiply
    18,911.90x = 26,099.13 × 10,414.39
  4. Step 4: Simplify right side
    18,911.90x = 271,806,518.48
  5. Step 5: Solve for x
    x = 271,806,518.48/18,911.90
  6. Step 6: Final answer
    x = 14,372.25

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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.