Home / 13,299.22-18,352.62-7,330.72

Finding the Fourth Proportional to 13,299.22, 18,352.62 and 7,330.72

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Solution

The fourth proportional to 13,299.22, 18,352.62 and 7,330.72 is: 10,116.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.22 : 18,352.62 = 7,330.72 : x
  2. Step 2: Convert to fraction form
    13,299.22/18,352.62 = 7,330.72/x
  3. Step 3: Cross multiply
    13,299.22x = 18,352.62 × 7,330.72
  4. Step 4: Simplify right side
    13,299.22x = 134,537,918.49
  5. Step 5: Solve for x
    x = 134,537,918.49/13,299.22
  6. Step 6: Final answer
    x = 10,116.23

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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.