Home / 10,186.88-14,058.24-9,720.32

Finding the Fourth Proportional to 10,186.88, 14,058.24 and 9,720.32

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Solution

The fourth proportional to 10,186.88, 14,058.24 and 9,720.32 is: 13,414.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.88 : 14,058.24 = 9,720.32 : x
  2. Step 2: Convert to fraction form
    10,186.88/14,058.24 = 9,720.32/x
  3. Step 3: Cross multiply
    10,186.88x = 14,058.24 × 9,720.32
  4. Step 4: Simplify right side
    10,186.88x = 136,650,591.44
  5. Step 5: Solve for x
    x = 136,650,591.44/10,186.88
  6. Step 6: Final answer
    x = 13,414.37

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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.