Home / 13,299.53-18,353.40-7,249.74

Finding the Fourth Proportional to 13,299.53, 18,353.40 and 7,249.74

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Solution

The fourth proportional to 13,299.53, 18,353.40 and 7,249.74 is: 10,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.53 : 18,353.40 = 7,249.74 : x
  2. Step 2: Convert to fraction form
    13,299.53/18,353.40 = 7,249.74/x
  3. Step 3: Cross multiply
    13,299.53x = 18,353.40 × 7,249.74
  4. Step 4: Simplify right side
    13,299.53x = 133,057,378.12
  5. Step 5: Solve for x
    x = 133,057,378.12/13,299.53
  6. Step 6: Final answer
    x = 10,004.67

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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.