Home / 14,664.50-21,999.99-5,430.50

Finding the Fourth Proportional to 14,664.50, 21,999.99 and 5,430.50

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Solution

The fourth proportional to 14,664.50, 21,999.99 and 5,430.50 is: 8,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,664.50 : 21,999.99 = 5,430.50 : x
  2. Step 2: Convert to fraction form
    14,664.50/21,999.99 = 5,430.50/x
  3. Step 3: Cross multiply
    14,664.50x = 21,999.99 × 5,430.50
  4. Step 4: Simplify right side
    14,664.50x = 119,470,945.70
  5. Step 5: Solve for x
    x = 119,470,945.70/14,664.50
  6. Step 6: Final answer
    x = 8,146.95

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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.