Home / 8,821.15-12,173.63-4,842.23

Finding the Fourth Proportional to 8,821.15, 12,173.63 and 4,842.23

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Solution

The fourth proportional to 8,821.15, 12,173.63 and 4,842.23 is: 6,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.15 : 12,173.63 = 4,842.23 : x
  2. Step 2: Convert to fraction form
    8,821.15/12,173.63 = 4,842.23/x
  3. Step 3: Cross multiply
    8,821.15x = 12,173.63 × 4,842.23
  4. Step 4: Simplify right side
    8,821.15x = 58,947,431.32
  5. Step 5: Solve for x
    x = 58,947,431.32/8,821.15
  6. Step 6: Final answer
    x = 6,682.51

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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.