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Finding the Fourth Proportional to 11,865.70, 17,800.38 and 4,470.70

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Solution

The fourth proportional to 11,865.70, 17,800.38 and 4,470.70 is: 6,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.70 : 17,800.38 = 4,470.70 : x
  2. Step 2: Convert to fraction form
    11,865.70/17,800.38 = 4,470.70/x
  3. Step 3: Cross multiply
    11,865.70x = 17,800.38 × 4,470.70
  4. Step 4: Simplify right side
    11,865.70x = 79,580,158.87
  5. Step 5: Solve for x
    x = 79,580,158.87/11,865.70
  6. Step 6: Final answer
    x = 6,706.74

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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.