Home / 13,134.72-19,625.15-12,675.36

Finding the Fourth Proportional to 13,134.72, 19,625.15 and 12,675.36

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Solution

The fourth proportional to 13,134.72, 19,625.15 and 12,675.36 is: 18,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.72 : 19,625.15 = 12,675.36 : x
  2. Step 2: Convert to fraction form
    13,134.72/19,625.15 = 12,675.36/x
  3. Step 3: Cross multiply
    13,134.72x = 19,625.15 × 12,675.36
  4. Step 4: Simplify right side
    13,134.72x = 248,755,777.93
  5. Step 5: Solve for x
    x = 248,755,777.93/13,134.72
  6. Step 6: Final answer
    x = 18,938.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.