Home / 18,305.67-27,427.16-9,991.52

Finding the Fourth Proportional to 18,305.67, 27,427.16 and 9,991.52

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Solution

The fourth proportional to 18,305.67, 27,427.16 and 9,991.52 is: 14,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.67 : 27,427.16 = 9,991.52 : x
  2. Step 2: Convert to fraction form
    18,305.67/27,427.16 = 9,991.52/x
  3. Step 3: Cross multiply
    18,305.67x = 27,427.16 × 9,991.52
  4. Step 4: Simplify right side
    18,305.67x = 274,039,111.23
  5. Step 5: Solve for x
    x = 274,039,111.23/18,305.67
  6. Step 6: Final answer
    x = 14,970.18

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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.