Home / 18,300.89-27,431.90-7,206.05

Finding the Fourth Proportional to 18,300.89, 27,431.90 and 7,206.05

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Solution

The fourth proportional to 18,300.89, 27,431.90 and 7,206.05 is: 10,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.89 : 27,431.90 = 7,206.05 : x
  2. Step 2: Convert to fraction form
    18,300.89/27,431.90 = 7,206.05/x
  3. Step 3: Cross multiply
    18,300.89x = 27,431.90 × 7,206.05
  4. Step 4: Simplify right side
    18,300.89x = 197,675,643.00
  5. Step 5: Solve for x
    x = 197,675,643.00/18,300.89
  6. Step 6: Final answer
    x = 10,801.42

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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.