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Finding the Fourth Proportional to 12,699.50, 17,525.85 and 7,393.46

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Solution

The fourth proportional to 12,699.50, 17,525.85 and 7,393.46 is: 10,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.50 : 17,525.85 = 7,393.46 : x
  2. Step 2: Convert to fraction form
    12,699.50/17,525.85 = 7,393.46/x
  3. Step 3: Cross multiply
    12,699.50x = 17,525.85 × 7,393.46
  4. Step 4: Simplify right side
    12,699.50x = 129,576,670.94
  5. Step 5: Solve for x
    x = 129,576,670.94/12,699.50
  6. Step 6: Final answer
    x = 10,203.29

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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.