Home / 11,515.36-17,271.90-4,119.52

Finding the Fourth Proportional to 11,515.36, 17,271.90 and 4,119.52

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Solution

The fourth proportional to 11,515.36, 17,271.90 and 4,119.52 is: 6,178.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.36 : 17,271.90 = 4,119.52 : x
  2. Step 2: Convert to fraction form
    11,515.36/17,271.90 = 4,119.52/x
  3. Step 3: Cross multiply
    11,515.36x = 17,271.90 × 4,119.52
  4. Step 4: Simplify right side
    11,515.36x = 71,151,937.49
  5. Step 5: Solve for x
    x = 71,151,937.49/11,515.36
  6. Step 6: Final answer
    x = 6,178.87

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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.