Home / 11,726.60-16,189.26-7,970

Finding the Fourth Proportional to 11,726.60, 16,189.26 and 7,970

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Solution

The fourth proportional to 11,726.60, 16,189.26 and 7,970 is: 11,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,726.60 : 16,189.26 = 7,970 : x
  2. Step 2: Convert to fraction form
    11,726.60/16,189.26 = 7,970/x
  3. Step 3: Cross multiply
    11,726.60x = 16,189.26 × 7,970
  4. Step 4: Simplify right side
    11,726.60x = 129,028,402.20
  5. Step 5: Solve for x
    x = 129,028,402.20/11,726.60
  6. Step 6: Final answer
    x = 11,003.05

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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.