Home / 12,282.54-18,425.64-4,387.08

Finding the Fourth Proportional to 12,282.54, 18,425.64 and 4,387.08

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Solution

The fourth proportional to 12,282.54, 18,425.64 and 4,387.08 is: 6,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.54 : 18,425.64 = 4,387.08 : x
  2. Step 2: Convert to fraction form
    12,282.54/18,425.64 = 4,387.08/x
  3. Step 3: Cross multiply
    12,282.54x = 18,425.64 × 4,387.08
  4. Step 4: Simplify right side
    12,282.54x = 80,834,756.73
  5. Step 5: Solve for x
    x = 80,834,756.73/12,282.54
  6. Step 6: Final answer
    x = 6,581.27

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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.