Home / 18,916.87-26,105.94-10,419.34

Finding the Fourth Proportional to 18,916.87, 26,105.94 and 10,419.34

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Solution

The fourth proportional to 18,916.87, 26,105.94 and 10,419.34 is: 14,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.87 : 26,105.94 = 10,419.34 : x
  2. Step 2: Convert to fraction form
    18,916.87/26,105.94 = 10,419.34/x
  3. Step 3: Cross multiply
    18,916.87x = 26,105.94 × 10,419.34
  4. Step 4: Simplify right side
    18,916.87x = 272,006,664.88
  5. Step 5: Solve for x
    x = 272,006,664.88/18,916.87
  6. Step 6: Final answer
    x = 14,379.05

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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.