Home / 12,116.70-18,104.58-8,769.06

Finding the Fourth Proportional to 12,116.70, 18,104.58 and 8,769.06

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Solution

The fourth proportional to 12,116.70, 18,104.58 and 8,769.06 is: 13,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.70 : 18,104.58 = 8,769.06 : x
  2. Step 2: Convert to fraction form
    12,116.70/18,104.58 = 8,769.06/x
  3. Step 3: Cross multiply
    12,116.70x = 18,104.58 × 8,769.06
  4. Step 4: Simplify right side
    12,116.70x = 158,760,148.29
  5. Step 5: Solve for x
    x = 158,760,148.29/12,116.70
  6. Step 6: Final answer
    x = 13,102.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.