Home / 14,769.70-20,383.39-8,398.29

Finding the Fourth Proportional to 14,769.70, 20,383.39 and 8,398.29

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Solution

The fourth proportional to 14,769.70, 20,383.39 and 8,398.29 is: 11,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,769.70 : 20,383.39 = 8,398.29 : x
  2. Step 2: Convert to fraction form
    14,769.70/20,383.39 = 8,398.29/x
  3. Step 3: Cross multiply
    14,769.70x = 20,383.39 × 8,398.29
  4. Step 4: Simplify right side
    14,769.70x = 171,185,620.40
  5. Step 5: Solve for x
    x = 171,185,620.40/14,769.70
  6. Step 6: Final answer
    x = 11,590.32

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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.