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Finding the Fourth Proportional to 11,970.99, 17,960.94 and 5,397.17

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Solution

The fourth proportional to 11,970.99, 17,960.94 and 5,397.17 is: 8,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.99 : 17,960.94 = 5,397.17 : x
  2. Step 2: Convert to fraction form
    11,970.99/17,960.94 = 5,397.17/x
  3. Step 3: Cross multiply
    11,970.99x = 17,960.94 × 5,397.17
  4. Step 4: Simplify right side
    11,970.99x = 96,938,156.74
  5. Step 5: Solve for x
    x = 96,938,156.74/11,970.99
  6. Step 6: Final answer
    x = 8,097.76

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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.