Home / 10,489.49-15,729.62-5,558.00

Finding the Fourth Proportional to 10,489.49, 15,729.62 and 5,558.00

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Solution

The fourth proportional to 10,489.49, 15,729.62 and 5,558.00 is: 8,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.49 : 15,729.62 = 5,558.00 : x
  2. Step 2: Convert to fraction form
    10,489.49/15,729.62 = 5,558.00/x
  3. Step 3: Cross multiply
    10,489.49x = 15,729.62 × 5,558.00
  4. Step 4: Simplify right side
    10,489.49x = 87,425,163.21
  5. Step 5: Solve for x
    x = 87,425,163.21/10,489.49
  6. Step 6: Final answer
    x = 8,334.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.