Home / 12,726.44-17,562.52-7,420.26

Finding the Fourth Proportional to 12,726.44, 17,562.52 and 7,420.26

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Solution

The fourth proportional to 12,726.44, 17,562.52 and 7,420.26 is: 10,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.44 : 17,562.52 = 7,420.26 : x
  2. Step 2: Convert to fraction form
    12,726.44/17,562.52 = 7,420.26/x
  3. Step 3: Cross multiply
    12,726.44x = 17,562.52 × 7,420.26
  4. Step 4: Simplify right side
    12,726.44x = 130,318,464.66
  5. Step 5: Solve for x
    x = 130,318,464.66/12,726.44
  6. Step 6: Final answer
    x = 10,239.98

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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.