Home / 8,456.11-11,669.88-4,871.62

Finding the Fourth Proportional to 8,456.11, 11,669.88 and 4,871.62

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Solution

The fourth proportional to 8,456.11, 11,669.88 and 4,871.62 is: 6,723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.11 : 11,669.88 = 4,871.62 : x
  2. Step 2: Convert to fraction form
    8,456.11/11,669.88 = 4,871.62/x
  3. Step 3: Cross multiply
    8,456.11x = 11,669.88 × 4,871.62
  4. Step 4: Simplify right side
    8,456.11x = 56,851,220.81
  5. Step 5: Solve for x
    x = 56,851,220.81/8,456.11
  6. Step 6: Final answer
    x = 6,723.09

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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.