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Finding the Fourth Proportional to 12,858.17, 17,744.39 and 7,553.07

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Solution

The fourth proportional to 12,858.17, 17,744.39 and 7,553.07 is: 10,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.17 : 17,744.39 = 7,553.07 : x
  2. Step 2: Convert to fraction form
    12,858.17/17,744.39 = 7,553.07/x
  3. Step 3: Cross multiply
    12,858.17x = 17,744.39 × 7,553.07
  4. Step 4: Simplify right side
    12,858.17x = 134,024,582.01
  5. Step 5: Solve for x
    x = 134,024,582.01/12,858.17
  6. Step 6: Final answer
    x = 10,423.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.