Home / 7,418.89-11,127.48-1,872.24

Finding the Fourth Proportional to 7,418.89, 11,127.48 and 1,872.24

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Solution

The fourth proportional to 7,418.89, 11,127.48 and 1,872.24 is: 2,808.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.89 : 11,127.48 = 1,872.24 : x
  2. Step 2: Convert to fraction form
    7,418.89/11,127.48 = 1,872.24/x
  3. Step 3: Cross multiply
    7,418.89x = 11,127.48 × 1,872.24
  4. Step 4: Simplify right side
    7,418.89x = 20,833,313.16
  5. Step 5: Solve for x
    x = 20,833,313.16/7,418.89
  6. Step 6: Final answer
    x = 2,808.14

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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.