Home / 7,931.12-11,893.77-3,551.58

Finding the Fourth Proportional to 7,931.12, 11,893.77 and 3,551.58

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Solution

The fourth proportional to 7,931.12, 11,893.77 and 3,551.58 is: 5,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.12 : 11,893.77 = 3,551.58 : x
  2. Step 2: Convert to fraction form
    7,931.12/11,893.77 = 3,551.58/x
  3. Step 3: Cross multiply
    7,931.12x = 11,893.77 × 3,551.58
  4. Step 4: Simplify right side
    7,931.12x = 42,241,675.66
  5. Step 5: Solve for x
    x = 42,241,675.66/7,931.12
  6. Step 6: Final answer
    x = 5,326.07

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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.