Home / 7,487.06-11,255.20-6,256.87

Finding the Fourth Proportional to 7,487.06, 11,255.20 and 6,256.87

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Solution

The fourth proportional to 7,487.06, 11,255.20 and 6,256.87 is: 9,405.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.06 : 11,255.20 = 6,256.87 : x
  2. Step 2: Convert to fraction form
    7,487.06/11,255.20 = 6,256.87/x
  3. Step 3: Cross multiply
    7,487.06x = 11,255.20 × 6,256.87
  4. Step 4: Simplify right side
    7,487.06x = 70,422,279.44
  5. Step 5: Solve for x
    x = 70,422,279.44/7,487.06
  6. Step 6: Final answer
    x = 9,405.87

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1.5x scale

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.