Home / 18,149.81-27,231.75-7,064.28

Finding the Fourth Proportional to 18,149.81, 27,231.75 and 7,064.28

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Solution

The fourth proportional to 18,149.81, 27,231.75 and 7,064.28 is: 10,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.81 : 27,231.75 = 7,064.28 : x
  2. Step 2: Convert to fraction form
    18,149.81/27,231.75 = 7,064.28/x
  3. Step 3: Cross multiply
    18,149.81x = 27,231.75 × 7,064.28
  4. Step 4: Simplify right side
    18,149.81x = 192,372,706.89
  5. Step 5: Solve for x
    x = 192,372,706.89/18,149.81
  6. Step 6: Final answer
    x = 10,599.16

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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.