Home / 10,691.45-14,754.04-6,216.81

Finding the Fourth Proportional to 10,691.45, 14,754.04 and 6,216.81

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Solution

The fourth proportional to 10,691.45, 14,754.04 and 6,216.81 is: 8,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.45 : 14,754.04 = 6,216.81 : x
  2. Step 2: Convert to fraction form
    10,691.45/14,754.04 = 6,216.81/x
  3. Step 3: Cross multiply
    10,691.45x = 14,754.04 × 6,216.81
  4. Step 4: Simplify right side
    10,691.45x = 91,723,063.41
  5. Step 5: Solve for x
    x = 91,723,063.41/10,691.45
  6. Step 6: Final answer
    x = 8,579.10

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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.