Home / 13,686.94-20,531.72-6,293.46

Finding the Fourth Proportional to 13,686.94, 20,531.72 and 6,293.46

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Solution

The fourth proportional to 13,686.94, 20,531.72 and 6,293.46 is: 9,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.94 : 20,531.72 = 6,293.46 : x
  2. Step 2: Convert to fraction form
    13,686.94/20,531.72 = 6,293.46/x
  3. Step 3: Cross multiply
    13,686.94x = 20,531.72 × 6,293.46
  4. Step 4: Simplify right side
    13,686.94x = 129,215,558.55
  5. Step 5: Solve for x
    x = 129,215,558.55/13,686.94
  6. Step 6: Final answer
    x = 9,440.79

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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.