Home / 12,445.80-18,669.22-4,126.56

Finding the Fourth Proportional to 12,445.80, 18,669.22 and 4,126.56

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Solution

The fourth proportional to 12,445.80, 18,669.22 and 4,126.56 is: 6,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.80 : 18,669.22 = 4,126.56 : x
  2. Step 2: Convert to fraction form
    12,445.80/18,669.22 = 4,126.56/x
  3. Step 3: Cross multiply
    12,445.80x = 18,669.22 × 4,126.56
  4. Step 4: Simplify right side
    12,445.80x = 77,039,656.48
  5. Step 5: Solve for x
    x = 77,039,656.48/12,445.80
  6. Step 6: Final answer
    x = 6,190.01

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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.