Home / 13,299.59-18,353.21-7,249.90

Finding the Fourth Proportional to 13,299.59, 18,353.21 and 7,249.90

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Solution

The fourth proportional to 13,299.59, 18,353.21 and 7,249.90 is: 10,004.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.59 : 18,353.21 = 7,249.90 : x
  2. Step 2: Convert to fraction form
    13,299.59/18,353.21 = 7,249.90/x
  3. Step 3: Cross multiply
    13,299.59x = 18,353.21 × 7,249.90
  4. Step 4: Simplify right side
    13,299.59x = 133,058,937.18
  5. Step 5: Solve for x
    x = 133,058,937.18/13,299.59
  6. Step 6: Final answer
    x = 10,004.74

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1.5x scale

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.