Home / 7,418.10-11,126.43-1,946.10

Finding the Fourth Proportional to 7,418.10, 11,126.43 and 1,946.10

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Solution

The fourth proportional to 7,418.10, 11,126.43 and 1,946.10 is: 2,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.10 : 11,126.43 = 1,946.10 : x
  2. Step 2: Convert to fraction form
    7,418.10/11,126.43 = 1,946.10/x
  3. Step 3: Cross multiply
    7,418.10x = 11,126.43 × 1,946.10
  4. Step 4: Simplify right side
    7,418.10x = 21,653,145.42
  5. Step 5: Solve for x
    x = 21,653,145.42/7,418.10
  6. Step 6: Final answer
    x = 2,918.96

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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.