Home / 11,316.16-16,969.56-6,388.48

Finding the Fourth Proportional to 11,316.16, 16,969.56 and 6,388.48

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Solution

The fourth proportional to 11,316.16, 16,969.56 and 6,388.48 is: 9,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.16 : 16,969.56 = 6,388.48 : x
  2. Step 2: Convert to fraction form
    11,316.16/16,969.56 = 6,388.48/x
  3. Step 3: Cross multiply
    11,316.16x = 16,969.56 × 6,388.48
  4. Step 4: Simplify right side
    11,316.16x = 108,409,694.67
  5. Step 5: Solve for x
    x = 108,409,694.67/11,316.16
  6. Step 6: Final answer
    x = 9,580.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.