Home / 18,389.20-27,588.40-5,910.32

Finding the Fourth Proportional to 18,389.20, 27,588.40 and 5,910.32

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Solution

The fourth proportional to 18,389.20, 27,588.40 and 5,910.32 is: 8,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.20 : 27,588.40 = 5,910.32 : x
  2. Step 2: Convert to fraction form
    18,389.20/27,588.40 = 5,910.32/x
  3. Step 3: Cross multiply
    18,389.20x = 27,588.40 × 5,910.32
  4. Step 4: Simplify right side
    18,389.20x = 163,056,272.29
  5. Step 5: Solve for x
    x = 163,056,272.29/18,389.20
  6. Step 6: Final answer
    x = 8,866.96

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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.