Home / 11,255.50-15,532.68-6,287.50

Finding the Fourth Proportional to 11,255.50, 15,532.68 and 6,287.50

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Solution

The fourth proportional to 11,255.50, 15,532.68 and 6,287.50 is: 8,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.50 : 15,532.68 = 6,287.50 : x
  2. Step 2: Convert to fraction form
    11,255.50/15,532.68 = 6,287.50/x
  3. Step 3: Cross multiply
    11,255.50x = 15,532.68 × 6,287.50
  4. Step 4: Simplify right side
    11,255.50x = 97,661,725.50
  5. Step 5: Solve for x
    x = 97,661,725.50/11,255.50
  6. Step 6: Final answer
    x = 8,676.80

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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.