Home / 13,299.36-18,352.81-7,331.02

Finding the Fourth Proportional to 13,299.36, 18,352.81 and 7,331.02

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Solution

The fourth proportional to 13,299.36, 18,352.81 and 7,331.02 is: 10,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.36 : 18,352.81 = 7,331.02 : x
  2. Step 2: Convert to fraction form
    13,299.36/18,352.81 = 7,331.02/x
  3. Step 3: Cross multiply
    13,299.36x = 18,352.81 × 7,331.02
  4. Step 4: Simplify right side
    13,299.36x = 134,544,883.68
  5. Step 5: Solve for x
    x = 134,544,883.68/13,299.36
  6. Step 6: Final answer
    x = 10,116.65

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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.