Home / 15,537.57-21,443.05-8,825.30

Finding the Fourth Proportional to 15,537.57, 21,443.05 and 8,825.30

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Solution

The fourth proportional to 15,537.57, 21,443.05 and 8,825.30 is: 12,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.57 : 21,443.05 = 8,825.30 : x
  2. Step 2: Convert to fraction form
    15,537.57/21,443.05 = 8,825.30/x
  3. Step 3: Cross multiply
    15,537.57x = 21,443.05 × 8,825.30
  4. Step 4: Simplify right side
    15,537.57x = 189,241,333.39
  5. Step 5: Solve for x
    x = 189,241,333.39/15,537.57
  6. Step 6: Final answer
    x = 12,179.60

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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.