Home / 13,710.33-20,573.96-5,388.89

Finding the Fourth Proportional to 13,710.33, 20,573.96 and 5,388.89

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Solution

The fourth proportional to 13,710.33, 20,573.96 and 5,388.89 is: 8,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.33 : 20,573.96 = 5,388.89 : x
  2. Step 2: Convert to fraction form
    13,710.33/20,573.96 = 5,388.89/x
  3. Step 3: Cross multiply
    13,710.33x = 20,573.96 × 5,388.89
  4. Step 4: Simplify right side
    13,710.33x = 110,870,677.49
  5. Step 5: Solve for x
    x = 110,870,677.49/13,710.33
  6. Step 6: Final answer
    x = 8,086.65

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1.5x scale

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.