Home / 18,628.02-27,930.51-8,769.78

Finding the Fourth Proportional to 18,628.02, 27,930.51 and 8,769.78

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Solution

The fourth proportional to 18,628.02, 27,930.51 and 8,769.78 is: 13,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.02 : 27,930.51 = 8,769.78 : x
  2. Step 2: Convert to fraction form
    18,628.02/27,930.51 = 8,769.78/x
  3. Step 3: Cross multiply
    18,628.02x = 27,930.51 × 8,769.78
  4. Step 4: Simplify right side
    18,628.02x = 244,944,427.99
  5. Step 5: Solve for x
    x = 244,944,427.99/18,628.02
  6. Step 6: Final answer
    x = 13,149.25

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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.