Home / 13,548.50-20,424.30-12,645.35

Finding the Fourth Proportional to 13,548.50, 20,424.30 and 12,645.35

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Solution

The fourth proportional to 13,548.50, 20,424.30 and 12,645.35 is: 19,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.50 : 20,424.30 = 12,645.35 : x
  2. Step 2: Convert to fraction form
    13,548.50/20,424.30 = 12,645.35/x
  3. Step 3: Cross multiply
    13,548.50x = 20,424.30 × 12,645.35
  4. Step 4: Simplify right side
    13,548.50x = 258,272,422.01
  5. Step 5: Solve for x
    x = 258,272,422.01/13,548.50
  6. Step 6: Final answer
    x = 19,062.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.