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Finding the Fourth Proportional to 18,536.32, 27,803.10 and 6,690.10

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Solution

The fourth proportional to 18,536.32, 27,803.10 and 6,690.10 is: 10,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.32 : 27,803.10 = 6,690.10 : x
  2. Step 2: Convert to fraction form
    18,536.32/27,803.10 = 6,690.10/x
  3. Step 3: Cross multiply
    18,536.32x = 27,803.10 × 6,690.10
  4. Step 4: Simplify right side
    18,536.32x = 186,005,519.31
  5. Step 5: Solve for x
    x = 186,005,519.31/18,536.32
  6. Step 6: Final answer
    x = 10,034.65

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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.