Home / 18,769.02-28,161.78-7,079.51

Finding the Fourth Proportional to 18,769.02, 28,161.78 and 7,079.51

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Solution

The fourth proportional to 18,769.02, 28,161.78 and 7,079.51 is: 10,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.02 : 28,161.78 = 7,079.51 : x
  2. Step 2: Convert to fraction form
    18,769.02/28,161.78 = 7,079.51/x
  3. Step 3: Cross multiply
    18,769.02x = 28,161.78 × 7,079.51
  4. Step 4: Simplify right side
    18,769.02x = 199,371,462.32
  5. Step 5: Solve for x
    x = 199,371,462.32/18,769.02
  6. Step 6: Final answer
    x = 10,622.37

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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.