Home / 15,212.39-20,993.91-8,498.16

Finding the Fourth Proportional to 15,212.39, 20,993.91 and 8,498.16

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Solution

The fourth proportional to 15,212.39, 20,993.91 and 8,498.16 is: 11,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.39 : 20,993.91 = 8,498.16 : x
  2. Step 2: Convert to fraction form
    15,212.39/20,993.91 = 8,498.16/x
  3. Step 3: Cross multiply
    15,212.39x = 20,993.91 × 8,498.16
  4. Step 4: Simplify right side
    15,212.39x = 178,409,606.21
  5. Step 5: Solve for x
    x = 178,409,606.21/15,212.39
  6. Step 6: Final answer
    x = 11,727.91

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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.