Home / 11,319.96-16,979.94-3,528.76

Finding the Fourth Proportional to 11,319.96, 16,979.94 and 3,528.76

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Solution

The fourth proportional to 11,319.96, 16,979.94 and 3,528.76 is: 5,293.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.96 : 16,979.94 = 3,528.76 : x
  2. Step 2: Convert to fraction form
    11,319.96/16,979.94 = 3,528.76/x
  3. Step 3: Cross multiply
    11,319.96x = 16,979.94 × 3,528.76
  4. Step 4: Simplify right side
    11,319.96x = 59,918,133.07
  5. Step 5: Solve for x
    x = 59,918,133.07/11,319.96
  6. Step 6: Final answer
    x = 5,293.14

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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.