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Finding the Fourth Proportional to 12,699.54, 17,525.48 and 7,110.54

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Solution

The fourth proportional to 12,699.54, 17,525.48 and 7,110.54 is: 9,812.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.54 : 17,525.48 = 7,110.54 : x
  2. Step 2: Convert to fraction form
    12,699.54/17,525.48 = 7,110.54/x
  3. Step 3: Cross multiply
    12,699.54x = 17,525.48 × 7,110.54
  4. Step 4: Simplify right side
    12,699.54x = 124,615,591.01
  5. Step 5: Solve for x
    x = 124,615,591.01/12,699.54
  6. Step 6: Final answer
    x = 9,812.61

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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.