Home / 7,424.13-11,135.16-1,877.13

Finding the Fourth Proportional to 7,424.13, 11,135.16 and 1,877.13

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Solution

The fourth proportional to 7,424.13, 11,135.16 and 1,877.13 is: 2,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.13 : 11,135.16 = 1,877.13 : x
  2. Step 2: Convert to fraction form
    7,424.13/11,135.16 = 1,877.13/x
  3. Step 3: Cross multiply
    7,424.13x = 11,135.16 × 1,877.13
  4. Step 4: Simplify right side
    7,424.13x = 20,902,142.89
  5. Step 5: Solve for x
    x = 20,902,142.89/7,424.13
  6. Step 6: Final answer
    x = 2,815.43

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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.