Home / 14,084.64-21,131.68-5,322.08

Finding the Fourth Proportional to 14,084.64, 21,131.68 and 5,322.08

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Solution

The fourth proportional to 14,084.64, 21,131.68 and 5,322.08 is: 7,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,084.64 : 21,131.68 = 5,322.08 : x
  2. Step 2: Convert to fraction form
    14,084.64/21,131.68 = 5,322.08/x
  3. Step 3: Cross multiply
    14,084.64x = 21,131.68 × 5,322.08
  4. Step 4: Simplify right side
    14,084.64x = 112,464,491.49
  5. Step 5: Solve for x
    x = 112,464,491.49/14,084.64
  6. Step 6: Final answer
    x = 7,984.90

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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.