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Finding the Fourth Proportional to 18,298.12, 27,447.18 and 4,447

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Solution

The fourth proportional to 18,298.12, 27,447.18 and 4,447 is: 6,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.12 : 27,447.18 = 4,447 : x
  2. Step 2: Convert to fraction form
    18,298.12/27,447.18 = 4,447/x
  3. Step 3: Cross multiply
    18,298.12x = 27,447.18 × 4,447
  4. Step 4: Simplify right side
    18,298.12x = 122,057,609.46
  5. Step 5: Solve for x
    x = 122,057,609.46/18,298.12
  6. Step 6: Final answer
    x = 6,670.50

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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.