Home / 12,859.13-17,745.20-7,193.98

Finding the Fourth Proportional to 12,859.13, 17,745.20 and 7,193.98

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Solution

The fourth proportional to 12,859.13, 17,745.20 and 7,193.98 is: 9,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.13 : 17,745.20 = 7,193.98 : x
  2. Step 2: Convert to fraction form
    12,859.13/17,745.20 = 7,193.98/x
  3. Step 3: Cross multiply
    12,859.13x = 17,745.20 × 7,193.98
  4. Step 4: Simplify right side
    12,859.13x = 127,658,566.84
  5. Step 5: Solve for x
    x = 127,658,566.84/12,859.13
  6. Step 6: Final answer
    x = 9,927.46

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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.