Home / 13,108.08-18,095.27-8,395.05

Finding the Fourth Proportional to 13,108.08, 18,095.27 and 8,395.05

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Solution

The fourth proportional to 13,108.08, 18,095.27 and 8,395.05 is: 11,589.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.08 : 18,095.27 = 8,395.05 : x
  2. Step 2: Convert to fraction form
    13,108.08/18,095.27 = 8,395.05/x
  3. Step 3: Cross multiply
    13,108.08x = 18,095.27 × 8,395.05
  4. Step 4: Simplify right side
    13,108.08x = 151,910,696.41
  5. Step 5: Solve for x
    x = 151,910,696.41/13,108.08
  6. Step 6: Final answer
    x = 11,589.09

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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.