Home / 11,513.40-17,270.10-4,121.40

Finding the Fourth Proportional to 11,513.40, 17,270.10 and 4,121.40

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Solution

The fourth proportional to 11,513.40, 17,270.10 and 4,121.40 is: 6,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.40 : 17,270.10 = 4,121.40 : x
  2. Step 2: Convert to fraction form
    11,513.40/17,270.10 = 4,121.40/x
  3. Step 3: Cross multiply
    11,513.40x = 17,270.10 × 4,121.40
  4. Step 4: Simplify right side
    11,513.40x = 71,176,990.14
  5. Step 5: Solve for x
    x = 71,176,990.14/11,513.40
  6. Step 6: Final answer
    x = 6,182.10

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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.