Home / 11,316.60-15,618.78-6,600.88

Finding the Fourth Proportional to 11,316.60, 15,618.78 and 6,600.88

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Solution

The fourth proportional to 11,316.60, 15,618.78 and 6,600.88 is: 9,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.60 : 15,618.78 = 6,600.88 : x
  2. Step 2: Convert to fraction form
    11,316.60/15,618.78 = 6,600.88/x
  3. Step 3: Cross multiply
    11,316.60x = 15,618.78 × 6,600.88
  4. Step 4: Simplify right side
    11,316.60x = 103,097,653.48
  5. Step 5: Solve for x
    x = 103,097,653.48/11,316.60
  6. Step 6: Final answer
    x = 9,110.30

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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.