Home / 12,282.45-18,423.60-3,517.38

Finding the Fourth Proportional to 12,282.45, 18,423.60 and 3,517.38

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Solution

The fourth proportional to 12,282.45, 18,423.60 and 3,517.38 is: 5,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.45 : 18,423.60 = 3,517.38 : x
  2. Step 2: Convert to fraction form
    12,282.45/18,423.60 = 3,517.38/x
  3. Step 3: Cross multiply
    12,282.45x = 18,423.60 × 3,517.38
  4. Step 4: Simplify right side
    12,282.45x = 64,802,802.17
  5. Step 5: Solve for x
    x = 64,802,802.17/12,282.45
  6. Step 6: Final answer
    x = 5,276.05

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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.