Home / 13,322.62-18,385.25-7,272.86

Finding the Fourth Proportional to 13,322.62, 18,385.25 and 7,272.86

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Solution

The fourth proportional to 13,322.62, 18,385.25 and 7,272.86 is: 10,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.62 : 18,385.25 = 7,272.86 : x
  2. Step 2: Convert to fraction form
    13,322.62/18,385.25 = 7,272.86/x
  3. Step 3: Cross multiply
    13,322.62x = 18,385.25 × 7,272.86
  4. Step 4: Simplify right side
    13,322.62x = 133,713,358.91
  5. Step 5: Solve for x
    x = 133,713,358.91/13,322.62
  6. Step 6: Final answer
    x = 10,036.57

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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.