Home / 6,986.36-9,640.75-4,001.51

Finding the Fourth Proportional to 6,986.36, 9,640.75 and 4,001.51

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Solution

The fourth proportional to 6,986.36, 9,640.75 and 4,001.51 is: 5,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.36 : 9,640.75 = 4,001.51 : x
  2. Step 2: Convert to fraction form
    6,986.36/9,640.75 = 4,001.51/x
  3. Step 3: Cross multiply
    6,986.36x = 9,640.75 × 4,001.51
  4. Step 4: Simplify right side
    6,986.36x = 38,577,557.53
  5. Step 5: Solve for x
    x = 38,577,557.53/6,986.36
  6. Step 6: Final answer
    x = 5,521.84

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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.