Home / 18,278.78-27,426.51-9,946.30

Finding the Fourth Proportional to 18,278.78, 27,426.51 and 9,946.30

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Solution

The fourth proportional to 18,278.78, 27,426.51 and 9,946.30 is: 14,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.78 : 27,426.51 = 9,946.30 : x
  2. Step 2: Convert to fraction form
    18,278.78/27,426.51 = 9,946.30/x
  3. Step 3: Cross multiply
    18,278.78x = 27,426.51 × 9,946.30
  4. Step 4: Simplify right side
    18,278.78x = 272,792,296.41
  5. Step 5: Solve for x
    x = 272,792,296.41/18,278.78
  6. Step 6: Final answer
    x = 14,923.99

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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.