Home / 14,020.73-19,350.71-8,990.63

Finding the Fourth Proportional to 14,020.73, 19,350.71 and 8,990.63

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Solution

The fourth proportional to 14,020.73, 19,350.71 and 8,990.63 is: 12,408.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.73 : 19,350.71 = 8,990.63 : x
  2. Step 2: Convert to fraction form
    14,020.73/19,350.71 = 8,990.63/x
  3. Step 3: Cross multiply
    14,020.73x = 19,350.71 × 8,990.63
  4. Step 4: Simplify right side
    14,020.73x = 173,975,073.85
  5. Step 5: Solve for x
    x = 173,975,073.85/14,020.73
  6. Step 6: Final answer
    x = 12,408.42

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Half scale
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Double scale
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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.