Home / 8,705.26-12,005.10-6,712.66

Finding the Fourth Proportional to 8,705.26, 12,005.10 and 6,712.66

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Solution

The fourth proportional to 8,705.26, 12,005.10 and 6,712.66 is: 9,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.26 : 12,005.10 = 6,712.66 : x
  2. Step 2: Convert to fraction form
    8,705.26/12,005.10 = 6,712.66/x
  3. Step 3: Cross multiply
    8,705.26x = 12,005.10 × 6,712.66
  4. Step 4: Simplify right side
    8,705.26x = 80,586,154.57
  5. Step 5: Solve for x
    x = 80,586,154.57/8,705.26
  6. Step 6: Final answer
    x = 9,257.18

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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.