Home / 11,100.86-15,322.48-6,388.46

Finding the Fourth Proportional to 11,100.86, 15,322.48 and 6,388.46

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Solution

The fourth proportional to 11,100.86, 15,322.48 and 6,388.46 is: 8,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.86 : 15,322.48 = 6,388.46 : x
  2. Step 2: Convert to fraction form
    11,100.86/15,322.48 = 6,388.46/x
  3. Step 3: Cross multiply
    11,100.86x = 15,322.48 × 6,388.46
  4. Step 4: Simplify right side
    11,100.86x = 97,887,050.58
  5. Step 5: Solve for x
    x = 97,887,050.58/11,100.86
  6. Step 6: Final answer
    x = 8,817.97

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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.