Home / 9,685.72-14,529.95-3,109.70

Finding the Fourth Proportional to 9,685.72, 14,529.95 and 3,109.70

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Solution

The fourth proportional to 9,685.72, 14,529.95 and 3,109.70 is: 4,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,685.72 : 14,529.95 = 3,109.70 : x
  2. Step 2: Convert to fraction form
    9,685.72/14,529.95 = 3,109.70/x
  3. Step 3: Cross multiply
    9,685.72x = 14,529.95 × 3,109.70
  4. Step 4: Simplify right side
    9,685.72x = 45,183,817.95
  5. Step 5: Solve for x
    x = 45,183,817.95/9,685.72
  6. Step 6: Final answer
    x = 4,664.99

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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.