Home / 10,864.10-16,286.91-4,294.91

Finding the Fourth Proportional to 10,864.10, 16,286.91 and 4,294.91

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Solution

The fourth proportional to 10,864.10, 16,286.91 and 4,294.91 is: 6,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.10 : 16,286.91 = 4,294.91 : x
  2. Step 2: Convert to fraction form
    10,864.10/16,286.91 = 4,294.91/x
  3. Step 3: Cross multiply
    10,864.10x = 16,286.91 × 4,294.91
  4. Step 4: Simplify right side
    10,864.10x = 69,950,731.19
  5. Step 5: Solve for x
    x = 69,950,731.19/10,864.10
  6. Step 6: Final answer
    x = 6,438.71

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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.