Home / 11,455.86-15,812.10-6,982.56

Finding the Fourth Proportional to 11,455.86, 15,812.10 and 6,982.56

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Solution

The fourth proportional to 11,455.86, 15,812.10 and 6,982.56 is: 9,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.86 : 15,812.10 = 6,982.56 : x
  2. Step 2: Convert to fraction form
    11,455.86/15,812.10 = 6,982.56/x
  3. Step 3: Cross multiply
    11,455.86x = 15,812.10 × 6,982.56
  4. Step 4: Simplify right side
    11,455.86x = 110,408,936.98
  5. Step 5: Solve for x
    x = 110,408,936.98/11,455.86
  6. Step 6: Final answer
    x = 9,637.77

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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.