Home / 12,322.83-18,476.16-4,421.39

Finding the Fourth Proportional to 12,322.83, 18,476.16 and 4,421.39

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Solution

The fourth proportional to 12,322.83, 18,476.16 and 4,421.39 is: 6,629.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.83 : 18,476.16 = 4,421.39 : x
  2. Step 2: Convert to fraction form
    12,322.83/18,476.16 = 4,421.39/x
  3. Step 3: Cross multiply
    12,322.83x = 18,476.16 × 4,421.39
  4. Step 4: Simplify right side
    12,322.83x = 81,690,231.19
  5. Step 5: Solve for x
    x = 81,690,231.19/12,322.83
  6. Step 6: Final answer
    x = 6,629.18

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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.