Home / 13,299.91-18,353.99-7,331.79

Finding the Fourth Proportional to 13,299.91, 18,353.99 and 7,331.79

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Solution

The fourth proportional to 13,299.91, 18,353.99 and 7,331.79 is: 10,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.91 : 18,353.99 = 7,331.79 : x
  2. Step 2: Convert to fraction form
    13,299.91/18,353.99 = 7,331.79/x
  3. Step 3: Cross multiply
    13,299.91x = 18,353.99 × 7,331.79
  4. Step 4: Simplify right side
    13,299.91x = 134,567,600.34
  5. Step 5: Solve for x
    x = 134,567,600.34/13,299.91
  6. Step 6: Final answer
    x = 10,117.93

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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.