Home / 16,721.85-25,082.78-6,865.77

Finding the Fourth Proportional to 16,721.85, 25,082.78 and 6,865.77

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Solution

The fourth proportional to 16,721.85, 25,082.78 and 6,865.77 is: 10,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,721.85 : 25,082.78 = 6,865.77 : x
  2. Step 2: Convert to fraction form
    16,721.85/25,082.78 = 6,865.77/x
  3. Step 3: Cross multiply
    16,721.85x = 25,082.78 × 6,865.77
  4. Step 4: Simplify right side
    16,721.85x = 172,212,564.11
  5. Step 5: Solve for x
    x = 172,212,564.11/16,721.85
  6. Step 6: Final answer
    x = 10,298.66

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1.5x scale

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.