Home / 8,272.16-11,415.34-4,495.20

Finding the Fourth Proportional to 8,272.16, 11,415.34 and 4,495.20

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Solution

The fourth proportional to 8,272.16, 11,415.34 and 4,495.20 is: 6,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.16 : 11,415.34 = 4,495.20 : x
  2. Step 2: Convert to fraction form
    8,272.16/11,415.34 = 4,495.20/x
  3. Step 3: Cross multiply
    8,272.16x = 11,415.34 × 4,495.20
  4. Step 4: Simplify right side
    8,272.16x = 51,314,205.50
  5. Step 5: Solve for x
    x = 51,314,205.50/8,272.16
  6. Step 6: Final answer
    x = 6,203.24

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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.