Home / 9,989.24-14,983.85-3,415.48

Finding the Fourth Proportional to 9,989.24, 14,983.85 and 3,415.48

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Solution

The fourth proportional to 9,989.24, 14,983.85 and 3,415.48 is: 5,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.24 : 14,983.85 = 3,415.48 : x
  2. Step 2: Convert to fraction form
    9,989.24/14,983.85 = 3,415.48/x
  3. Step 3: Cross multiply
    9,989.24x = 14,983.85 × 3,415.48
  4. Step 4: Simplify right side
    9,989.24x = 51,177,040.00
  5. Step 5: Solve for x
    x = 51,177,040.00/9,989.24
  6. Step 6: Final answer
    x = 5,123.22

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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.