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Finding the Fourth Proportional to 12,298.92, 18,443.84 and 4,399.32

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Solution

The fourth proportional to 12,298.92, 18,443.84 and 4,399.32 is: 6,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.92 : 18,443.84 = 4,399.32 : x
  2. Step 2: Convert to fraction form
    12,298.92/18,443.84 = 4,399.32/x
  3. Step 3: Cross multiply
    12,298.92x = 18,443.84 × 4,399.32
  4. Step 4: Simplify right side
    12,298.92x = 81,140,354.19
  5. Step 5: Solve for x
    x = 81,140,354.19/12,298.92
  6. Step 6: Final answer
    x = 6,597.36

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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.