Home / 9,989.05-14,983.58-3,415.29

Finding the Fourth Proportional to 9,989.05, 14,983.58 and 3,415.29

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Solution

The fourth proportional to 9,989.05, 14,983.58 and 3,415.29 is: 5,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.05 : 14,983.58 = 3,415.29 : x
  2. Step 2: Convert to fraction form
    9,989.05/14,983.58 = 3,415.29/x
  3. Step 3: Cross multiply
    9,989.05x = 14,983.58 × 3,415.29
  4. Step 4: Simplify right side
    9,989.05x = 51,173,270.94
  5. Step 5: Solve for x
    x = 51,173,270.94/9,989.05
  6. Step 6: Final answer
    x = 5,122.94

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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.