Home / 13,414.04-18,523.98-8,642.36

Finding the Fourth Proportional to 13,414.04, 18,523.98 and 8,642.36

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Solution

The fourth proportional to 13,414.04, 18,523.98 and 8,642.36 is: 11,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.04 : 18,523.98 = 8,642.36 : x
  2. Step 2: Convert to fraction form
    13,414.04/18,523.98 = 8,642.36/x
  3. Step 3: Cross multiply
    13,414.04x = 18,523.98 × 8,642.36
  4. Step 4: Simplify right side
    13,414.04x = 160,090,903.79
  5. Step 5: Solve for x
    x = 160,090,903.79/13,414.04
  6. Step 6: Final answer
    x = 11,934.58

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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.