Home / 11,433.99-15,778.03-6,397.28

Finding the Fourth Proportional to 11,433.99, 15,778.03 and 6,397.28

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Solution

The fourth proportional to 11,433.99, 15,778.03 and 6,397.28 is: 8,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.99 : 15,778.03 = 6,397.28 : x
  2. Step 2: Convert to fraction form
    11,433.99/15,778.03 = 6,397.28/x
  3. Step 3: Cross multiply
    11,433.99x = 15,778.03 × 6,397.28
  4. Step 4: Simplify right side
    11,433.99x = 100,936,475.76
  5. Step 5: Solve for x
    x = 100,936,475.76/11,433.99
  6. Step 6: Final answer
    x = 8,827.76

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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.