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Finding the Fourth Proportional to 14,145.76, 21,046.76 and 14,097.34

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Solution

The fourth proportional to 14,145.76, 21,046.76 and 14,097.34 is: 20,974.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.76 : 21,046.76 = 14,097.34 : x
  2. Step 2: Convert to fraction form
    14,145.76/21,046.76 = 14,097.34/x
  3. Step 3: Cross multiply
    14,145.76x = 21,046.76 × 14,097.34
  4. Step 4: Simplify right side
    14,145.76x = 296,703,331.62
  5. Step 5: Solve for x
    x = 296,703,331.62/14,145.76
  6. Step 6: Final answer
    x = 20,974.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.