Home / 13,628.88-20,444.13-5,307.35

Finding the Fourth Proportional to 13,628.88, 20,444.13 and 5,307.35

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Solution

The fourth proportional to 13,628.88, 20,444.13 and 5,307.35 is: 7,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.88 : 20,444.13 = 5,307.35 : x
  2. Step 2: Convert to fraction form
    13,628.88/20,444.13 = 5,307.35/x
  3. Step 3: Cross multiply
    13,628.88x = 20,444.13 × 5,307.35
  4. Step 4: Simplify right side
    13,628.88x = 108,504,051.13
  5. Step 5: Solve for x
    x = 108,504,051.13/13,628.88
  6. Step 6: Final answer
    x = 7,961.33

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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.