Home / 9,305.04-12,842.85-8,557.82

Finding the Fourth Proportional to 9,305.04, 12,842.85 and 8,557.82

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Solution

The fourth proportional to 9,305.04, 12,842.85 and 8,557.82 is: 11,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.04 : 12,842.85 = 8,557.82 : x
  2. Step 2: Convert to fraction form
    9,305.04/12,842.85 = 8,557.82/x
  3. Step 3: Cross multiply
    9,305.04x = 12,842.85 × 8,557.82
  4. Step 4: Simplify right side
    9,305.04x = 109,906,734.37
  5. Step 5: Solve for x
    x = 109,906,734.37/9,305.04
  6. Step 6: Final answer
    x = 11,811.53

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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.