Home / 8,239.74-11,371.04-4,703.28

Finding the Fourth Proportional to 8,239.74, 11,371.04 and 4,703.28

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Solution

The fourth proportional to 8,239.74, 11,371.04 and 4,703.28 is: 6,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.74 : 11,371.04 = 4,703.28 : x
  2. Step 2: Convert to fraction form
    8,239.74/11,371.04 = 4,703.28/x
  3. Step 3: Cross multiply
    8,239.74x = 11,371.04 × 4,703.28
  4. Step 4: Simplify right side
    8,239.74x = 53,481,185.01
  5. Step 5: Solve for x
    x = 53,481,185.01/8,239.74
  6. Step 6: Final answer
    x = 6,490.64

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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.