Home / 15,252.12-21,047.76-8,537.64

Finding the Fourth Proportional to 15,252.12, 21,047.76 and 8,537.64

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Solution

The fourth proportional to 15,252.12, 21,047.76 and 8,537.64 is: 11,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.12 : 21,047.76 = 8,537.64 : x
  2. Step 2: Convert to fraction form
    15,252.12/21,047.76 = 8,537.64/x
  3. Step 3: Cross multiply
    15,252.12x = 21,047.76 × 8,537.64
  4. Step 4: Simplify right side
    15,252.12x = 179,698,197.69
  5. Step 5: Solve for x
    x = 179,698,197.69/15,252.12
  6. Step 6: Final answer
    x = 11,781.85

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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.