Home / 8,918.44-13,377.36-4,240.72

Finding the Fourth Proportional to 8,918.44, 13,377.36 and 4,240.72

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Solution

The fourth proportional to 8,918.44, 13,377.36 and 4,240.72 is: 6,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.44 : 13,377.36 = 4,240.72 : x
  2. Step 2: Convert to fraction form
    8,918.44/13,377.36 = 4,240.72/x
  3. Step 3: Cross multiply
    8,918.44x = 13,377.36 × 4,240.72
  4. Step 4: Simplify right side
    8,918.44x = 56,729,638.10
  5. Step 5: Solve for x
    x = 56,729,638.10/8,918.44
  6. Step 6: Final answer
    x = 6,360.94

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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.