Home / 13,756.41-18,983.70-7,468.79

Finding the Fourth Proportional to 13,756.41, 18,983.70 and 7,468.79

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Solution

The fourth proportional to 13,756.41, 18,983.70 and 7,468.79 is: 10,306.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.41 : 18,983.70 = 7,468.79 : x
  2. Step 2: Convert to fraction form
    13,756.41/18,983.70 = 7,468.79/x
  3. Step 3: Cross multiply
    13,756.41x = 18,983.70 × 7,468.79
  4. Step 4: Simplify right side
    13,756.41x = 141,785,173.80
  5. Step 5: Solve for x
    x = 141,785,173.80/13,756.41
  6. Step 6: Final answer
    x = 10,306.84

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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.