Home / 18,538.12-27,807.20-8,684.32

Finding the Fourth Proportional to 18,538.12, 27,807.20 and 8,684.32

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Solution

The fourth proportional to 18,538.12, 27,807.20 and 8,684.32 is: 13,026.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.12 : 27,807.20 = 8,684.32 : x
  2. Step 2: Convert to fraction form
    18,538.12/27,807.20 = 8,684.32/x
  3. Step 3: Cross multiply
    18,538.12x = 27,807.20 × 8,684.32
  4. Step 4: Simplify right side
    18,538.12x = 241,486,623.10
  5. Step 5: Solve for x
    x = 241,486,623.10/18,538.12
  6. Step 6: Final answer
    x = 13,026.49

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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.