Home / 11,495.17-15,863.16-6,390.49

Finding the Fourth Proportional to 11,495.17, 15,863.16 and 6,390.49

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Solution

The fourth proportional to 11,495.17, 15,863.16 and 6,390.49 is: 8,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.17 : 15,863.16 = 6,390.49 : x
  2. Step 2: Convert to fraction form
    11,495.17/15,863.16 = 6,390.49/x
  3. Step 3: Cross multiply
    11,495.17x = 15,863.16 × 6,390.49
  4. Step 4: Simplify right side
    11,495.17x = 101,373,325.69
  5. Step 5: Solve for x
    x = 101,373,325.69/11,495.17
  6. Step 6: Final answer
    x = 8,818.78

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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.