Home / 18,675.63-25,761.04-11,116.91

Finding the Fourth Proportional to 18,675.63, 25,761.04 and 11,116.91

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Solution

The fourth proportional to 18,675.63, 25,761.04 and 11,116.91 is: 15,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.63 : 25,761.04 = 11,116.91 : x
  2. Step 2: Convert to fraction form
    18,675.63/25,761.04 = 11,116.91/x
  3. Step 3: Cross multiply
    18,675.63x = 25,761.04 × 11,116.91
  4. Step 4: Simplify right side
    18,675.63x = 286,383,199.80
  5. Step 5: Solve for x
    x = 286,383,199.80/18,675.63
  6. Step 6: Final answer
    x = 15,334.59

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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.