Home / 13,820.08-19,052.38-11,687.04

Finding the Fourth Proportional to 13,820.08, 19,052.38 and 11,687.04

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Solution

The fourth proportional to 13,820.08, 19,052.38 and 11,687.04 is: 16,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.08 : 19,052.38 = 11,687.04 : x
  2. Step 2: Convert to fraction form
    13,820.08/19,052.38 = 11,687.04/x
  3. Step 3: Cross multiply
    13,820.08x = 19,052.38 × 11,687.04
  4. Step 4: Simplify right side
    13,820.08x = 222,665,897.94
  5. Step 5: Solve for x
    x = 222,665,897.94/13,820.08
  6. Step 6: Final answer
    x = 16,111.77

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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.