Home / 11,015.13-16,530.80-7,316.13

Finding the Fourth Proportional to 11,015.13, 16,530.80 and 7,316.13

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Solution

The fourth proportional to 11,015.13, 16,530.80 and 7,316.13 is: 10,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.13 : 16,530.80 = 7,316.13 : x
  2. Step 2: Convert to fraction form
    11,015.13/16,530.80 = 7,316.13/x
  3. Step 3: Cross multiply
    11,015.13x = 16,530.80 × 7,316.13
  4. Step 4: Simplify right side
    11,015.13x = 120,941,481.80
  5. Step 5: Solve for x
    x = 120,941,481.80/11,015.13
  6. Step 6: Final answer
    x = 10,979.58

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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.