Home / 13,390.70-20,087.80-4,956.06

Finding the Fourth Proportional to 13,390.70, 20,087.80 and 4,956.06

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Solution

The fourth proportional to 13,390.70, 20,087.80 and 4,956.06 is: 7,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.70 : 20,087.80 = 4,956.06 : x
  2. Step 2: Convert to fraction form
    13,390.70/20,087.80 = 4,956.06/x
  3. Step 3: Cross multiply
    13,390.70x = 20,087.80 × 4,956.06
  4. Step 4: Simplify right side
    13,390.70x = 99,556,329.68
  5. Step 5: Solve for x
    x = 99,556,329.68/13,390.70
  6. Step 6: Final answer
    x = 7,434.74

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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.