Home / 13,976.88-20,955.72-5,207.04

Finding the Fourth Proportional to 13,976.88, 20,955.72 and 5,207.04

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Solution

The fourth proportional to 13,976.88, 20,955.72 and 5,207.04 is: 7,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.88 : 20,955.72 = 5,207.04 : x
  2. Step 2: Convert to fraction form
    13,976.88/20,955.72 = 5,207.04/x
  3. Step 3: Cross multiply
    13,976.88x = 20,955.72 × 5,207.04
  4. Step 4: Simplify right side
    13,976.88x = 109,117,272.27
  5. Step 5: Solve for x
    x = 109,117,272.27/13,976.88
  6. Step 6: Final answer
    x = 7,806.98

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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.