Home / 7,551.15-11,317.47-3,390.09

Finding the Fourth Proportional to 7,551.15, 11,317.47 and 3,390.09

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Solution

The fourth proportional to 7,551.15, 11,317.47 and 3,390.09 is: 5,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.15 : 11,317.47 = 3,390.09 : x
  2. Step 2: Convert to fraction form
    7,551.15/11,317.47 = 3,390.09/x
  3. Step 3: Cross multiply
    7,551.15x = 11,317.47 × 3,390.09
  4. Step 4: Simplify right side
    7,551.15x = 38,367,241.87
  5. Step 5: Solve for x
    x = 38,367,241.87/7,551.15
  6. Step 6: Final answer
    x = 5,080.98

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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.