Home / 18,512.77-25,551.72-12,778.27

Finding the Fourth Proportional to 18,512.77, 25,551.72 and 12,778.27

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Solution

The fourth proportional to 18,512.77, 25,551.72 and 12,778.27 is: 17,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.77 : 25,551.72 = 12,778.27 : x
  2. Step 2: Convert to fraction form
    18,512.77/25,551.72 = 12,778.27/x
  3. Step 3: Cross multiply
    18,512.77x = 25,551.72 × 12,778.27
  4. Step 4: Simplify right side
    18,512.77x = 326,506,777.12
  5. Step 5: Solve for x
    x = 326,506,777.12/18,512.77
  6. Step 6: Final answer
    x = 17,636.84

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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.