Home / 13,710.21-20,573.77-5,388.76

Finding the Fourth Proportional to 13,710.21, 20,573.77 and 5,388.76

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Solution

The fourth proportional to 13,710.21, 20,573.77 and 5,388.76 is: 8,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.21 : 20,573.77 = 5,388.76 : x
  2. Step 2: Convert to fraction form
    13,710.21/20,573.77 = 5,388.76/x
  3. Step 3: Cross multiply
    13,710.21x = 20,573.77 × 5,388.76
  4. Step 4: Simplify right side
    13,710.21x = 110,867,108.83
  5. Step 5: Solve for x
    x = 110,867,108.83/13,710.21
  6. Step 6: Final answer
    x = 8,086.46

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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.