Home / 14,670.68-21,980.42-12,221.24

Finding the Fourth Proportional to 14,670.68, 21,980.42 and 12,221.24

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Solution

The fourth proportional to 14,670.68, 21,980.42 and 12,221.24 is: 18,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.68 : 21,980.42 = 12,221.24 : x
  2. Step 2: Convert to fraction form
    14,670.68/21,980.42 = 12,221.24/x
  3. Step 3: Cross multiply
    14,670.68x = 21,980.42 × 12,221.24
  4. Step 4: Simplify right side
    14,670.68x = 268,627,988.12
  5. Step 5: Solve for x
    x = 268,627,988.12/14,670.68
  6. Step 6: Final answer
    x = 18,310.53

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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.