Home / 6,678.51-9,215.55-3,846.81

Finding the Fourth Proportional to 6,678.51, 9,215.55 and 3,846.81

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Solution

The fourth proportional to 6,678.51, 9,215.55 and 3,846.81 is: 5,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.51 : 9,215.55 = 3,846.81 : x
  2. Step 2: Convert to fraction form
    6,678.51/9,215.55 = 3,846.81/x
  3. Step 3: Cross multiply
    6,678.51x = 9,215.55 × 3,846.81
  4. Step 4: Simplify right side
    6,678.51x = 35,450,434.58
  5. Step 5: Solve for x
    x = 35,450,434.58/6,678.51
  6. Step 6: Final answer
    x = 5,308.13

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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.