Home / 13,817.47-20,708.87-5,910.69

Finding the Fourth Proportional to 13,817.47, 20,708.87 and 5,910.69

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Solution

The fourth proportional to 13,817.47, 20,708.87 and 5,910.69 is: 8,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.47 : 20,708.87 = 5,910.69 : x
  2. Step 2: Convert to fraction form
    13,817.47/20,708.87 = 5,910.69/x
  3. Step 3: Cross multiply
    13,817.47x = 20,708.87 × 5,910.69
  4. Step 4: Simplify right side
    13,817.47x = 122,403,710.82
  5. Step 5: Solve for x
    x = 122,403,710.82/13,817.47
  6. Step 6: Final answer
    x = 8,858.62

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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.