Home / 12,278.72-16,946.67-7,244.18

Finding the Fourth Proportional to 12,278.72, 16,946.67 and 7,244.18

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Solution

The fourth proportional to 12,278.72, 16,946.67 and 7,244.18 is: 9,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.72 : 16,946.67 = 7,244.18 : x
  2. Step 2: Convert to fraction form
    12,278.72/16,946.67 = 7,244.18/x
  3. Step 3: Cross multiply
    12,278.72x = 16,946.67 × 7,244.18
  4. Step 4: Simplify right side
    12,278.72x = 122,764,797.41
  5. Step 5: Solve for x
    x = 122,764,797.41/12,278.72
  6. Step 6: Final answer
    x = 9,998.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.