Home / 13,508.39-18,647.27-8,204.91

Finding the Fourth Proportional to 13,508.39, 18,647.27 and 8,204.91

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Solution

The fourth proportional to 13,508.39, 18,647.27 and 8,204.91 is: 11,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.39 : 18,647.27 = 8,204.91 : x
  2. Step 2: Convert to fraction form
    13,508.39/18,647.27 = 8,204.91/x
  3. Step 3: Cross multiply
    13,508.39x = 18,647.27 × 8,204.91
  4. Step 4: Simplify right side
    13,508.39x = 152,999,131.07
  5. Step 5: Solve for x
    x = 152,999,131.07/13,508.39
  6. Step 6: Final answer
    x = 11,326.23

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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.