Home / 8,418.93-11,618.22-4,642.11

Finding the Fourth Proportional to 8,418.93, 11,618.22 and 4,642.11

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Solution

The fourth proportional to 8,418.93, 11,618.22 and 4,642.11 is: 6,406.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.93 : 11,618.22 = 4,642.11 : x
  2. Step 2: Convert to fraction form
    8,418.93/11,618.22 = 4,642.11/x
  3. Step 3: Cross multiply
    8,418.93x = 11,618.22 × 4,642.11
  4. Step 4: Simplify right side
    8,418.93x = 53,932,973.94
  5. Step 5: Solve for x
    x = 53,932,973.94/8,418.93
  6. Step 6: Final answer
    x = 6,406.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.