Home / 12,282.89-18,428.03-4,384.40

Finding the Fourth Proportional to 12,282.89, 18,428.03 and 4,384.40

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Solution

The fourth proportional to 12,282.89, 18,428.03 and 4,384.40 is: 6,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.89 : 18,428.03 = 4,384.40 : x
  2. Step 2: Convert to fraction form
    12,282.89/18,428.03 = 4,384.40/x
  3. Step 3: Cross multiply
    12,282.89x = 18,428.03 × 4,384.40
  4. Step 4: Simplify right side
    12,282.89x = 80,795,854.73
  5. Step 5: Solve for x
    x = 80,795,854.73/12,282.89
  6. Step 6: Final answer
    x = 6,577.92

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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.