Home / 12,548.40-18,825.76-8,857.84

Finding the Fourth Proportional to 12,548.40, 18,825.76 and 8,857.84

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Solution

The fourth proportional to 12,548.40, 18,825.76 and 8,857.84 is: 13,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.40 : 18,825.76 = 8,857.84 : x
  2. Step 2: Convert to fraction form
    12,548.40/18,825.76 = 8,857.84/x
  3. Step 3: Cross multiply
    12,548.40x = 18,825.76 × 8,857.84
  4. Step 4: Simplify right side
    12,548.40x = 166,755,569.96
  5. Step 5: Solve for x
    x = 166,755,569.96/12,548.40
  6. Step 6: Final answer
    x = 13,288.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.