Home / 8,328.07-11,479.37-5,638.44

Finding the Fourth Proportional to 8,328.07, 11,479.37 and 5,638.44

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Solution

The fourth proportional to 8,328.07, 11,479.37 and 5,638.44 is: 7,772.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.07 : 11,479.37 = 5,638.44 : x
  2. Step 2: Convert to fraction form
    8,328.07/11,479.37 = 5,638.44/x
  3. Step 3: Cross multiply
    8,328.07x = 11,479.37 × 5,638.44
  4. Step 4: Simplify right side
    8,328.07x = 64,725,738.98
  5. Step 5: Solve for x
    x = 64,725,738.98/8,328.07
  6. Step 6: Final answer
    x = 7,772.00

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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.