Home / 11,437.44-15,781.08-7,243.28

Finding the Fourth Proportional to 11,437.44, 15,781.08 and 7,243.28

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Solution

The fourth proportional to 11,437.44, 15,781.08 and 7,243.28 is: 9,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.44 : 15,781.08 = 7,243.28 : x
  2. Step 2: Convert to fraction form
    11,437.44/15,781.08 = 7,243.28/x
  3. Step 3: Cross multiply
    11,437.44x = 15,781.08 × 7,243.28
  4. Step 4: Simplify right side
    11,437.44x = 114,306,781.14
  5. Step 5: Solve for x
    x = 114,306,781.14/11,437.44
  6. Step 6: Final answer
    x = 9,994.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.