Home / 9,967.19-13,765.55-7,755.48

Finding the Fourth Proportional to 9,967.19, 13,765.55 and 7,755.48

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Solution

The fourth proportional to 9,967.19, 13,765.55 and 7,755.48 is: 10,710.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,967.19 : 13,765.55 = 7,755.48 : x
  2. Step 2: Convert to fraction form
    9,967.19/13,765.55 = 7,755.48/x
  3. Step 3: Cross multiply
    9,967.19x = 13,765.55 × 7,755.48
  4. Step 4: Simplify right side
    9,967.19x = 106,758,408.94
  5. Step 5: Solve for x
    x = 106,758,408.94/9,967.19
  6. Step 6: Final answer
    x = 10,710.99

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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.