Home / 13,685.74-20,537.80-5,364.70

Finding the Fourth Proportional to 13,685.74, 20,537.80 and 5,364.70

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Solution

The fourth proportional to 13,685.74, 20,537.80 and 5,364.70 is: 8,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.74 : 20,537.80 = 5,364.70 : x
  2. Step 2: Convert to fraction form
    13,685.74/20,537.80 = 5,364.70/x
  3. Step 3: Cross multiply
    13,685.74x = 20,537.80 × 5,364.70
  4. Step 4: Simplify right side
    13,685.74x = 110,179,135.66
  5. Step 5: Solve for x
    x = 110,179,135.66/13,685.74
  6. Step 6: Final answer
    x = 8,050.65

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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.