Home / 10,889.34-15,028.02-6,109.73

Finding the Fourth Proportional to 10,889.34, 15,028.02 and 6,109.73

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Solution

The fourth proportional to 10,889.34, 15,028.02 and 6,109.73 is: 8,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.34 : 15,028.02 = 6,109.73 : x
  2. Step 2: Convert to fraction form
    10,889.34/15,028.02 = 6,109.73/x
  3. Step 3: Cross multiply
    10,889.34x = 15,028.02 × 6,109.73
  4. Step 4: Simplify right side
    10,889.34x = 91,817,069.49
  5. Step 5: Solve for x
    x = 91,817,069.49/10,889.34
  6. Step 6: Final answer
    x = 8,431.83

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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.