Home / 8,628.30-11,900.20-5,600.11

Finding the Fourth Proportional to 8,628.30, 11,900.20 and 5,600.11

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Solution

The fourth proportional to 8,628.30, 11,900.20 and 5,600.11 is: 7,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.30 : 11,900.20 = 5,600.11 : x
  2. Step 2: Convert to fraction form
    8,628.30/11,900.20 = 5,600.11/x
  3. Step 3: Cross multiply
    8,628.30x = 11,900.20 × 5,600.11
  4. Step 4: Simplify right side
    8,628.30x = 66,642,429.02
  5. Step 5: Solve for x
    x = 66,642,429.02/8,628.30
  6. Step 6: Final answer
    x = 7,723.70

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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.