Home / 21,145.04-29,180.04-11,713.52

Finding the Fourth Proportional to 21,145.04, 29,180.04 and 11,713.52

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Solution

The fourth proportional to 21,145.04, 29,180.04 and 11,713.52 is: 16,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,145.04 : 29,180.04 = 11,713.52 : x
  2. Step 2: Convert to fraction form
    21,145.04/29,180.04 = 11,713.52/x
  3. Step 3: Cross multiply
    21,145.04x = 29,180.04 × 11,713.52
  4. Step 4: Simplify right side
    21,145.04x = 341,800,982.14
  5. Step 5: Solve for x
    x = 341,800,982.14/21,145.04
  6. Step 6: Final answer
    x = 16,164.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.