Home / 11,731.43-17,555.23-10,189.60

Finding the Fourth Proportional to 11,731.43, 17,555.23 and 10,189.60

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Solution

The fourth proportional to 11,731.43, 17,555.23 and 10,189.60 is: 15,247.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.43 : 17,555.23 = 10,189.60 : x
  2. Step 2: Convert to fraction form
    11,731.43/17,555.23 = 10,189.60/x
  3. Step 3: Cross multiply
    11,731.43x = 17,555.23 × 10,189.60
  4. Step 4: Simplify right side
    11,731.43x = 178,880,740.46
  5. Step 5: Solve for x
    x = 178,880,740.46/11,731.43
  6. Step 6: Final answer
    x = 15,247.99

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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.