Home / 13,299.50-18,353.28-7,331.12

Finding the Fourth Proportional to 13,299.50, 18,353.28 and 7,331.12

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Solution

The fourth proportional to 13,299.50, 18,353.28 and 7,331.12 is: 10,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.50 : 18,353.28 = 7,331.12 : x
  2. Step 2: Convert to fraction form
    13,299.50/18,353.28 = 7,331.12/x
  3. Step 3: Cross multiply
    13,299.50x = 18,353.28 × 7,331.12
  4. Step 4: Simplify right side
    13,299.50x = 134,550,098.07
  5. Step 5: Solve for x
    x = 134,550,098.07/13,299.50
  6. Step 6: Final answer
    x = 10,116.93

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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.