Home / 13,299.20-18,352.16-7,330.86

Finding the Fourth Proportional to 13,299.20, 18,352.16 and 7,330.86

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Solution

The fourth proportional to 13,299.20, 18,352.16 and 7,330.86 is: 10,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.20 : 18,352.16 = 7,330.86 : x
  2. Step 2: Convert to fraction form
    13,299.20/18,352.16 = 7,330.86/x
  3. Step 3: Cross multiply
    13,299.20x = 18,352.16 × 7,330.86
  4. Step 4: Simplify right side
    13,299.20x = 134,537,115.66
  5. Step 5: Solve for x
    x = 134,537,115.66/13,299.20
  6. Step 6: Final answer
    x = 10,116.18

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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.