Home / 13,713.88-20,570.28-4,950.76

Finding the Fourth Proportional to 13,713.88, 20,570.28 and 4,950.76

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Solution

The fourth proportional to 13,713.88, 20,570.28 and 4,950.76 is: 7,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.88 : 20,570.28 = 4,950.76 : x
  2. Step 2: Convert to fraction form
    13,713.88/20,570.28 = 4,950.76/x
  3. Step 3: Cross multiply
    13,713.88x = 20,570.28 × 4,950.76
  4. Step 4: Simplify right side
    13,713.88x = 101,838,519.41
  5. Step 5: Solve for x
    x = 101,838,519.41/13,713.88
  6. Step 6: Final answer
    x = 7,425.95

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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.