Home / 18,387.32-27,556.67-6,689.30

Finding the Fourth Proportional to 18,387.32, 27,556.67 and 6,689.30

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Solution

The fourth proportional to 18,387.32, 27,556.67 and 6,689.30 is: 10,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.32 : 27,556.67 = 6,689.30 : x
  2. Step 2: Convert to fraction form
    18,387.32/27,556.67 = 6,689.30/x
  3. Step 3: Cross multiply
    18,387.32x = 27,556.67 × 6,689.30
  4. Step 4: Simplify right side
    18,387.32x = 184,334,711.57
  5. Step 5: Solve for x
    x = 184,334,711.57/18,387.32
  6. Step 6: Final answer
    x = 10,025.10

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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.