Home / 9,987.70-14,989.30-3,753.39

Finding the Fourth Proportional to 9,987.70, 14,989.30 and 3,753.39

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Solution

The fourth proportional to 9,987.70, 14,989.30 and 3,753.39 is: 5,632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.70 : 14,989.30 = 3,753.39 : x
  2. Step 2: Convert to fraction form
    9,987.70/14,989.30 = 3,753.39/x
  3. Step 3: Cross multiply
    9,987.70x = 14,989.30 × 3,753.39
  4. Step 4: Simplify right side
    9,987.70x = 56,260,595.01
  5. Step 5: Solve for x
    x = 56,260,595.01/9,987.70
  6. Step 6: Final answer
    x = 5,632.99

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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.