Home / 8,686.94-13,021.58-3,418.49

Finding the Fourth Proportional to 8,686.94, 13,021.58 and 3,418.49

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Solution

The fourth proportional to 8,686.94, 13,021.58 and 3,418.49 is: 5,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.94 : 13,021.58 = 3,418.49 : x
  2. Step 2: Convert to fraction form
    8,686.94/13,021.58 = 3,418.49/x
  3. Step 3: Cross multiply
    8,686.94x = 13,021.58 × 3,418.49
  4. Step 4: Simplify right side
    8,686.94x = 44,514,058.81
  5. Step 5: Solve for x
    x = 44,514,058.81/8,686.94
  6. Step 6: Final answer
    x = 5,124.25

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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.