Home / 14,172.30-21,259.26-3,642.39

Finding the Fourth Proportional to 14,172.30, 21,259.26 and 3,642.39

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Solution

The fourth proportional to 14,172.30, 21,259.26 and 3,642.39 is: 5,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.30 : 21,259.26 = 3,642.39 : x
  2. Step 2: Convert to fraction form
    14,172.30/21,259.26 = 3,642.39/x
  3. Step 3: Cross multiply
    14,172.30x = 21,259.26 × 3,642.39
  4. Step 4: Simplify right side
    14,172.30x = 77,434,516.03
  5. Step 5: Solve for x
    x = 77,434,516.03/14,172.30
  6. Step 6: Final answer
    x = 5,463.79

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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.