Home / 11,255.63-15,532.71-6,220.20

Finding the Fourth Proportional to 11,255.63, 15,532.71 and 6,220.20

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Solution

The fourth proportional to 11,255.63, 15,532.71 and 6,220.20 is: 8,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.63 : 15,532.71 = 6,220.20 : x
  2. Step 2: Convert to fraction form
    11,255.63/15,532.71 = 6,220.20/x
  3. Step 3: Cross multiply
    11,255.63x = 15,532.71 × 6,220.20
  4. Step 4: Simplify right side
    11,255.63x = 96,616,562.74
  5. Step 5: Solve for x
    x = 96,616,562.74/11,255.63
  6. Step 6: Final answer
    x = 8,583.84

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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.