Home / 8,312.66-11,473.87-4,912.82

Finding the Fourth Proportional to 8,312.66, 11,473.87 and 4,912.82

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Solution

The fourth proportional to 8,312.66, 11,473.87 and 4,912.82 is: 6,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.66 : 11,473.87 = 4,912.82 : x
  2. Step 2: Convert to fraction form
    8,312.66/11,473.87 = 4,912.82/x
  3. Step 3: Cross multiply
    8,312.66x = 11,473.87 × 4,912.82
  4. Step 4: Simplify right side
    8,312.66x = 56,369,058.01
  5. Step 5: Solve for x
    x = 56,369,058.01/8,312.66
  6. Step 6: Final answer
    x = 6,781.11

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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.