Home / 18,305.96-27,427.58-9,991.81

Finding the Fourth Proportional to 18,305.96, 27,427.58 and 9,991.81

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Solution

The fourth proportional to 18,305.96, 27,427.58 and 9,991.81 is: 14,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.96 : 27,427.58 = 9,991.81 : x
  2. Step 2: Convert to fraction form
    18,305.96/27,427.58 = 9,991.81/x
  3. Step 3: Cross multiply
    18,305.96x = 27,427.58 × 9,991.81
  4. Step 4: Simplify right side
    18,305.96x = 274,051,124.53
  5. Step 5: Solve for x
    x = 274,051,124.53/18,305.96
  6. Step 6: Final answer
    x = 14,970.60

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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.