Home / 13,805.75-20,713.52-5,904.95

Finding the Fourth Proportional to 13,805.75, 20,713.52 and 5,904.95

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Solution

The fourth proportional to 13,805.75, 20,713.52 and 5,904.95 is: 8,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.75 : 20,713.52 = 5,904.95 : x
  2. Step 2: Convert to fraction form
    13,805.75/20,713.52 = 5,904.95/x
  3. Step 3: Cross multiply
    13,805.75x = 20,713.52 × 5,904.95
  4. Step 4: Simplify right side
    13,805.75x = 122,312,211.12
  5. Step 5: Solve for x
    x = 122,312,211.12/13,805.75
  6. Step 6: Final answer
    x = 8,859.51

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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.