Home / 9,192.12-12,682.98-5,212.32

Finding the Fourth Proportional to 9,192.12, 12,682.98 and 5,212.32

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Solution

The fourth proportional to 9,192.12, 12,682.98 and 5,212.32 is: 7,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.12 : 12,682.98 = 5,212.32 : x
  2. Step 2: Convert to fraction form
    9,192.12/12,682.98 = 5,212.32/x
  3. Step 3: Cross multiply
    9,192.12x = 12,682.98 × 5,212.32
  4. Step 4: Simplify right side
    9,192.12x = 66,107,750.31
  5. Step 5: Solve for x
    x = 66,107,750.31/9,192.12
  6. Step 6: Final answer
    x = 7,191.78

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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.