Home / 13,364.78-20,054.28-7,521.80

Finding the Fourth Proportional to 13,364.78, 20,054.28 and 7,521.80

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Solution

The fourth proportional to 13,364.78, 20,054.28 and 7,521.80 is: 11,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.78 : 20,054.28 = 7,521.80 : x
  2. Step 2: Convert to fraction form
    13,364.78/20,054.28 = 7,521.80/x
  3. Step 3: Cross multiply
    13,364.78x = 20,054.28 × 7,521.80
  4. Step 4: Simplify right side
    13,364.78x = 150,844,283.30
  5. Step 5: Solve for x
    x = 150,844,283.30/13,364.78
  6. Step 6: Final answer
    x = 11,286.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.