Home / 14,145.12-21,217.64-3,615.14

Finding the Fourth Proportional to 14,145.12, 21,217.64 and 3,615.14

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Solution

The fourth proportional to 14,145.12, 21,217.64 and 3,615.14 is: 5,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.12 : 21,217.64 = 3,615.14 : x
  2. Step 2: Convert to fraction form
    14,145.12/21,217.64 = 3,615.14/x
  3. Step 3: Cross multiply
    14,145.12x = 21,217.64 × 3,615.14
  4. Step 4: Simplify right side
    14,145.12x = 76,704,774.04
  5. Step 5: Solve for x
    x = 76,704,774.04/14,145.12
  6. Step 6: Final answer
    x = 5,422.70

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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.