Home / 9,412.44-12,989.46-5,221.08

Finding the Fourth Proportional to 9,412.44, 12,989.46 and 5,221.08

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Solution

The fourth proportional to 9,412.44, 12,989.46 and 5,221.08 is: 7,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.44 : 12,989.46 = 5,221.08 : x
  2. Step 2: Convert to fraction form
    9,412.44/12,989.46 = 5,221.08/x
  3. Step 3: Cross multiply
    9,412.44x = 12,989.46 × 5,221.08
  4. Step 4: Simplify right side
    9,412.44x = 67,819,009.82
  5. Step 5: Solve for x
    x = 67,819,009.82/9,412.44
  6. Step 6: Final answer
    x = 7,205.25

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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.