Home / 13,418.19-20,127.45-4,058.28

Finding the Fourth Proportional to 13,418.19, 20,127.45 and 4,058.28

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Solution

The fourth proportional to 13,418.19, 20,127.45 and 4,058.28 is: 6,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.19 : 20,127.45 = 4,058.28 : x
  2. Step 2: Convert to fraction form
    13,418.19/20,127.45 = 4,058.28/x
  3. Step 3: Cross multiply
    13,418.19x = 20,127.45 × 4,058.28
  4. Step 4: Simplify right side
    13,418.19x = 81,682,827.79
  5. Step 5: Solve for x
    x = 81,682,827.79/13,418.19
  6. Step 6: Final answer
    x = 6,087.47

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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.