Home / 11,381.51-15,704.48-6,345.34

Finding the Fourth Proportional to 11,381.51, 15,704.48 and 6,345.34

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Solution

The fourth proportional to 11,381.51, 15,704.48 and 6,345.34 is: 8,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.51 : 15,704.48 = 6,345.34 : x
  2. Step 2: Convert to fraction form
    11,381.51/15,704.48 = 6,345.34/x
  3. Step 3: Cross multiply
    11,381.51x = 15,704.48 × 6,345.34
  4. Step 4: Simplify right side
    11,381.51x = 99,650,241.73
  5. Step 5: Solve for x
    x = 99,650,241.73/11,381.51
  6. Step 6: Final answer
    x = 8,755.45

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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.