Home / 13,686.35-20,527.74-4,327.31

Finding the Fourth Proportional to 13,686.35, 20,527.74 and 4,327.31

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Solution

The fourth proportional to 13,686.35, 20,527.74 and 4,327.31 is: 6,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.35 : 20,527.74 = 4,327.31 : x
  2. Step 2: Convert to fraction form
    13,686.35/20,527.74 = 4,327.31/x
  3. Step 3: Cross multiply
    13,686.35x = 20,527.74 × 4,327.31
  4. Step 4: Simplify right side
    13,686.35x = 88,829,791.94
  5. Step 5: Solve for x
    x = 88,829,791.94/13,686.35
  6. Step 6: Final answer
    x = 6,490.40

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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.