Home / 18,788.85-25,916.14-12,082.96

Finding the Fourth Proportional to 18,788.85, 25,916.14 and 12,082.96

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Solution

The fourth proportional to 18,788.85, 25,916.14 and 12,082.96 is: 16,666.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.85 : 25,916.14 = 12,082.96 : x
  2. Step 2: Convert to fraction form
    18,788.85/25,916.14 = 12,082.96/x
  3. Step 3: Cross multiply
    18,788.85x = 25,916.14 × 12,082.96
  4. Step 4: Simplify right side
    18,788.85x = 313,143,682.97
  5. Step 5: Solve for x
    x = 313,143,682.97/18,788.85
  6. Step 6: Final answer
    x = 16,666.46

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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.