Home / 11,927.16-17,890.74-4,138.20

Finding the Fourth Proportional to 11,927.16, 17,890.74 and 4,138.20

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Solution

The fourth proportional to 11,927.16, 17,890.74 and 4,138.20 is: 6,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.16 : 17,890.74 = 4,138.20 : x
  2. Step 2: Convert to fraction form
    11,927.16/17,890.74 = 4,138.20/x
  3. Step 3: Cross multiply
    11,927.16x = 17,890.74 × 4,138.20
  4. Step 4: Simplify right side
    11,927.16x = 74,035,460.27
  5. Step 5: Solve for x
    x = 74,035,460.27/11,927.16
  6. Step 6: Final answer
    x = 6,207.30

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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.