Home / 14,187.36-21,285.36-8,331.60

Finding the Fourth Proportional to 14,187.36, 21,285.36 and 8,331.60

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Solution

The fourth proportional to 14,187.36, 21,285.36 and 8,331.60 is: 12,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.36 : 21,285.36 = 8,331.60 : x
  2. Step 2: Convert to fraction form
    14,187.36/21,285.36 = 8,331.60/x
  3. Step 3: Cross multiply
    14,187.36x = 21,285.36 × 8,331.60
  4. Step 4: Simplify right side
    14,187.36x = 177,341,105.38
  5. Step 5: Solve for x
    x = 177,341,105.38/14,187.36
  6. Step 6: Final answer
    x = 12,499.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.