Home / 13,712.90-20,566.73-6,685.85

Finding the Fourth Proportional to 13,712.90, 20,566.73 and 6,685.85

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Solution

The fourth proportional to 13,712.90, 20,566.73 and 6,685.85 is: 10,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.90 : 20,566.73 = 6,685.85 : x
  2. Step 2: Convert to fraction form
    13,712.90/20,566.73 = 6,685.85/x
  3. Step 3: Cross multiply
    13,712.90x = 20,566.73 × 6,685.85
  4. Step 4: Simplify right side
    13,712.90x = 137,505,935.51
  5. Step 5: Solve for x
    x = 137,505,935.51/13,712.90
  6. Step 6: Final answer
    x = 10,027.49

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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.