Home / 12,945.74-19,418.63-5,549.63

Finding the Fourth Proportional to 12,945.74, 19,418.63 and 5,549.63

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Solution

The fourth proportional to 12,945.74, 19,418.63 and 5,549.63 is: 8,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.74 : 19,418.63 = 5,549.63 : x
  2. Step 2: Convert to fraction form
    12,945.74/19,418.63 = 5,549.63/x
  3. Step 3: Cross multiply
    12,945.74x = 19,418.63 × 5,549.63
  4. Step 4: Simplify right side
    12,945.74x = 107,766,086.77
  5. Step 5: Solve for x
    x = 107,766,086.77/12,945.74
  6. Step 6: Final answer
    x = 8,324.45

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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.