Home / 14,649.36-20,214.66-8,187.78

Finding the Fourth Proportional to 14,649.36, 20,214.66 and 8,187.78

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Solution

The fourth proportional to 14,649.36, 20,214.66 and 8,187.78 is: 11,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.36 : 20,214.66 = 8,187.78 : x
  2. Step 2: Convert to fraction form
    14,649.36/20,214.66 = 8,187.78/x
  3. Step 3: Cross multiply
    14,649.36x = 20,214.66 × 8,187.78
  4. Step 4: Simplify right side
    14,649.36x = 165,513,295.36
  5. Step 5: Solve for x
    x = 165,513,295.36/14,649.36
  6. Step 6: Final answer
    x = 11,298.33

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Half scale
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Double scale
Find fourth proportional to 14,650.36, 20,216.04 and 8,188.78
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.