Home / 14,086.72-21,129.60-4,225.60

Finding the Fourth Proportional to 14,086.72, 21,129.60 and 4,225.60

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Solution

The fourth proportional to 14,086.72, 21,129.60 and 4,225.60 is: 6,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.72 : 21,129.60 = 4,225.60 : x
  2. Step 2: Convert to fraction form
    14,086.72/21,129.60 = 4,225.60/x
  3. Step 3: Cross multiply
    14,086.72x = 21,129.60 × 4,225.60
  4. Step 4: Simplify right side
    14,086.72x = 89,285,237.76
  5. Step 5: Solve for x
    x = 89,285,237.76/14,086.72
  6. Step 6: Final answer
    x = 6,338.26

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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.