Home / 14,491.17-19,998.90-8,118.36

Finding the Fourth Proportional to 14,491.17, 19,998.90 and 8,118.36

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Solution

The fourth proportional to 14,491.17, 19,998.90 and 8,118.36 is: 11,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.17 : 19,998.90 = 8,118.36 : x
  2. Step 2: Convert to fraction form
    14,491.17/19,998.90 = 8,118.36/x
  3. Step 3: Cross multiply
    14,491.17x = 19,998.90 × 8,118.36
  4. Step 4: Simplify right side
    14,491.17x = 162,358,269.80
  5. Step 5: Solve for x
    x = 162,358,269.80/14,491.17
  6. Step 6: Final answer
    x = 11,203.94

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Double scale
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Similar ratio
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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.