Home / 14,020.49-19,350.37-8,990.39

Finding the Fourth Proportional to 14,020.49, 19,350.37 and 8,990.39

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Solution

The fourth proportional to 14,020.49, 19,350.37 and 8,990.39 is: 12,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.49 : 19,350.37 = 8,990.39 : x
  2. Step 2: Convert to fraction form
    14,020.49/19,350.37 = 8,990.39/x
  3. Step 3: Cross multiply
    14,020.49x = 19,350.37 × 8,990.39
  4. Step 4: Simplify right side
    14,020.49x = 173,967,253.72
  5. Step 5: Solve for x
    x = 173,967,253.72/14,020.49
  6. Step 6: Final answer
    x = 12,408.08

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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.