Home / 15,211.06-21,001.14-13,614.94

Finding the Fourth Proportional to 15,211.06, 21,001.14 and 13,614.94

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Solution

The fourth proportional to 15,211.06, 21,001.14 and 13,614.94 is: 18,797.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.06 : 21,001.14 = 13,614.94 : x
  2. Step 2: Convert to fraction form
    15,211.06/21,001.14 = 13,614.94/x
  3. Step 3: Cross multiply
    15,211.06x = 21,001.14 × 13,614.94
  4. Step 4: Simplify right side
    15,211.06x = 285,929,261.03
  5. Step 5: Solve for x
    x = 285,929,261.03/15,211.06
  6. Step 6: Final answer
    x = 18,797.46

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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.