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Finding the Fourth Proportional to 18,310.64, 27,465.96 and 6,621.12

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Solution

The fourth proportional to 18,310.64, 27,465.96 and 6,621.12 is: 9,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.64 : 27,465.96 = 6,621.12 : x
  2. Step 2: Convert to fraction form
    18,310.64/27,465.96 = 6,621.12/x
  3. Step 3: Cross multiply
    18,310.64x = 27,465.96 × 6,621.12
  4. Step 4: Simplify right side
    18,310.64x = 181,855,417.08
  5. Step 5: Solve for x
    x = 181,855,417.08/18,310.64
  6. Step 6: Final answer
    x = 9,931.68

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Similar ratio
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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.