Home / 8,728.09-13,074.35-4,272.53

Finding the Fourth Proportional to 8,728.09, 13,074.35 and 4,272.53

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Solution

The fourth proportional to 8,728.09, 13,074.35 and 4,272.53 is: 6,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.09 : 13,074.35 = 4,272.53 : x
  2. Step 2: Convert to fraction form
    8,728.09/13,074.35 = 4,272.53/x
  3. Step 3: Cross multiply
    8,728.09x = 13,074.35 × 4,272.53
  4. Step 4: Simplify right side
    8,728.09x = 55,860,465.87
  5. Step 5: Solve for x
    x = 55,860,465.87/8,728.09
  6. Step 6: Final answer
    x = 6,400.08

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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.