Home / 9,961.12-13,747.68-5,768.32

Finding the Fourth Proportional to 9,961.12, 13,747.68 and 5,768.32

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Solution

The fourth proportional to 9,961.12, 13,747.68 and 5,768.32 is: 7,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,961.12 : 13,747.68 = 5,768.32 : x
  2. Step 2: Convert to fraction form
    9,961.12/13,747.68 = 5,768.32/x
  3. Step 3: Cross multiply
    9,961.12x = 13,747.68 × 5,768.32
  4. Step 4: Simplify right side
    9,961.12x = 79,301,017.50
  5. Step 5: Solve for x
    x = 79,301,017.50/9,961.12
  6. Step 6: Final answer
    x = 7,961.05

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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.