Home / 8,995.68-12,415.66-5,221.26

Finding the Fourth Proportional to 8,995.68, 12,415.66 and 5,221.26

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Solution

The fourth proportional to 8,995.68, 12,415.66 and 5,221.26 is: 7,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.68 : 12,415.66 = 5,221.26 : x
  2. Step 2: Convert to fraction form
    8,995.68/12,415.66 = 5,221.26/x
  3. Step 3: Cross multiply
    8,995.68x = 12,415.66 × 5,221.26
  4. Step 4: Simplify right side
    8,995.68x = 64,825,388.93
  5. Step 5: Solve for x
    x = 64,825,388.93/8,995.68
  6. Step 6: Final answer
    x = 7,206.28

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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.