Home / 6,386.64-9,561.36-3,913.89

Finding the Fourth Proportional to 6,386.64, 9,561.36 and 3,913.89

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Solution

The fourth proportional to 6,386.64, 9,561.36 and 3,913.89 is: 5,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.64 : 9,561.36 = 3,913.89 : x
  2. Step 2: Convert to fraction form
    6,386.64/9,561.36 = 3,913.89/x
  3. Step 3: Cross multiply
    6,386.64x = 9,561.36 × 3,913.89
  4. Step 4: Simplify right side
    6,386.64x = 37,422,111.29
  5. Step 5: Solve for x
    x = 37,422,111.29/6,386.64
  6. Step 6: Final answer
    x = 5,859.44

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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.