Home / 11,351.91-15,664.28-6,314.86

Finding the Fourth Proportional to 11,351.91, 15,664.28 and 6,314.86

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Solution

The fourth proportional to 11,351.91, 15,664.28 and 6,314.86 is: 8,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.91 : 15,664.28 = 6,314.86 : x
  2. Step 2: Convert to fraction form
    11,351.91/15,664.28 = 6,314.86/x
  3. Step 3: Cross multiply
    11,351.91x = 15,664.28 × 6,314.86
  4. Step 4: Simplify right side
    11,351.91x = 98,917,703.63
  5. Step 5: Solve for x
    x = 98,917,703.63/11,351.91
  6. Step 6: Final answer
    x = 8,713.75

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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.