Home / 14,069.28-21,102.48-3,679.68

Finding the Fourth Proportional to 14,069.28, 21,102.48 and 3,679.68

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Solution

The fourth proportional to 14,069.28, 21,102.48 and 3,679.68 is: 5,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.28 : 21,102.48 = 3,679.68 : x
  2. Step 2: Convert to fraction form
    14,069.28/21,102.48 = 3,679.68/x
  3. Step 3: Cross multiply
    14,069.28x = 21,102.48 × 3,679.68
  4. Step 4: Simplify right side
    14,069.28x = 77,650,373.61
  5. Step 5: Solve for x
    x = 77,650,373.61/14,069.28
  6. Step 6: Final answer
    x = 5,519.14

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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.