Home / 7,767.84-11,647.26-5,305.64

Finding the Fourth Proportional to 7,767.84, 11,647.26 and 5,305.64

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Solution

The fourth proportional to 7,767.84, 11,647.26 and 5,305.64 is: 7,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.84 : 11,647.26 = 5,305.64 : x
  2. Step 2: Convert to fraction form
    7,767.84/11,647.26 = 5,305.64/x
  3. Step 3: Cross multiply
    7,767.84x = 11,647.26 × 5,305.64
  4. Step 4: Simplify right side
    7,767.84x = 61,796,110.31
  5. Step 5: Solve for x
    x = 61,796,110.31/7,767.84
  6. Step 6: Final answer
    x = 7,955.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.