Home / 15,253.22-21,049.80-8,538.68

Finding the Fourth Proportional to 15,253.22, 21,049.80 and 8,538.68

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Solution

The fourth proportional to 15,253.22, 21,049.80 and 8,538.68 is: 11,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.22 : 21,049.80 = 8,538.68 : x
  2. Step 2: Convert to fraction form
    15,253.22/21,049.80 = 8,538.68/x
  3. Step 3: Cross multiply
    15,253.22x = 21,049.80 × 8,538.68
  4. Step 4: Simplify right side
    15,253.22x = 179,737,506.26
  5. Step 5: Solve for x
    x = 179,737,506.26/15,253.22
  6. Step 6: Final answer
    x = 11,783.58

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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.