Home / 9,977.15-14,965.86-4,781.81

Finding the Fourth Proportional to 9,977.15, 14,965.86 and 4,781.81

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Solution

The fourth proportional to 9,977.15, 14,965.86 and 4,781.81 is: 7,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977.15 : 14,965.86 = 4,781.81 : x
  2. Step 2: Convert to fraction form
    9,977.15/14,965.86 = 4,781.81/x
  3. Step 3: Cross multiply
    9,977.15x = 14,965.86 × 4,781.81
  4. Step 4: Simplify right side
    9,977.15x = 71,563,824.18
  5. Step 5: Solve for x
    x = 71,563,824.18/9,977.15
  6. Step 6: Final answer
    x = 7,172.78

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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.