Home / 7,667.58-11,502.74-2,120.81

Finding the Fourth Proportional to 7,667.58, 11,502.74 and 2,120.81

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Solution

The fourth proportional to 7,667.58, 11,502.74 and 2,120.81 is: 3,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,667.58 : 11,502.74 = 2,120.81 : x
  2. Step 2: Convert to fraction form
    7,667.58/11,502.74 = 2,120.81/x
  3. Step 3: Cross multiply
    7,667.58x = 11,502.74 × 2,120.81
  4. Step 4: Simplify right side
    7,667.58x = 24,395,068.51
  5. Step 5: Solve for x
    x = 24,395,068.51/7,667.58
  6. Step 6: Final answer
    x = 3,181.59

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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.