Home / 9,900.02-13,659.54-6,367.88

Finding the Fourth Proportional to 9,900.02, 13,659.54 and 6,367.88

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Solution

The fourth proportional to 9,900.02, 13,659.54 and 6,367.88 is: 8,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.02 : 13,659.54 = 6,367.88 : x
  2. Step 2: Convert to fraction form
    9,900.02/13,659.54 = 6,367.88/x
  3. Step 3: Cross multiply
    9,900.02x = 13,659.54 × 6,367.88
  4. Step 4: Simplify right side
    9,900.02x = 86,982,311.58
  5. Step 5: Solve for x
    x = 86,982,311.58/9,900.02
  6. Step 6: Final answer
    x = 8,786.07

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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.