Home / 13,322.60-18,385.10-7,272.82

Finding the Fourth Proportional to 13,322.60, 18,385.10 and 7,272.82

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Solution

The fourth proportional to 13,322.60, 18,385.10 and 7,272.82 is: 10,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.60 : 18,385.10 = 7,272.82 : x
  2. Step 2: Convert to fraction form
    13,322.60/18,385.10 = 7,272.82/x
  3. Step 3: Cross multiply
    13,322.60x = 18,385.10 × 7,272.82
  4. Step 4: Simplify right side
    13,322.60x = 133,711,467.93
  5. Step 5: Solve for x
    x = 133,711,467.93/13,322.60
  6. Step 6: Final answer
    x = 10,036.44

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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.