Home / 13,852.08-20,773.28-3,988.72

Finding the Fourth Proportional to 13,852.08, 20,773.28 and 3,988.72

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Solution

The fourth proportional to 13,852.08, 20,773.28 and 3,988.72 is: 5,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,852.08 : 20,773.28 = 3,988.72 : x
  2. Step 2: Convert to fraction form
    13,852.08/20,773.28 = 3,988.72/x
  3. Step 3: Cross multiply
    13,852.08x = 20,773.28 × 3,988.72
  4. Step 4: Simplify right side
    13,852.08x = 82,858,797.40
  5. Step 5: Solve for x
    x = 82,858,797.40/13,852.08
  6. Step 6: Final answer
    x = 5,981.69

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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.