Home / 18,121.71-27,190.67-7,029.27

Finding the Fourth Proportional to 18,121.71, 27,190.67 and 7,029.27

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Solution

The fourth proportional to 18,121.71, 27,190.67 and 7,029.27 is: 10,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.71 : 27,190.67 = 7,029.27 : x
  2. Step 2: Convert to fraction form
    18,121.71/27,190.67 = 7,029.27/x
  3. Step 3: Cross multiply
    18,121.71x = 27,190.67 × 7,029.27
  4. Step 4: Simplify right side
    18,121.71x = 191,130,525.76
  5. Step 5: Solve for x
    x = 191,130,525.76/18,121.71
  6. Step 6: Final answer
    x = 10,547.05

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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.