Home / 13,783.55-19,025.63-8,117.91

Finding the Fourth Proportional to 13,783.55, 19,025.63 and 8,117.91

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Solution

The fourth proportional to 13,783.55, 19,025.63 and 8,117.91 is: 11,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.55 : 19,025.63 = 8,117.91 : x
  2. Step 2: Convert to fraction form
    13,783.55/19,025.63 = 8,117.91/x
  3. Step 3: Cross multiply
    13,783.55x = 19,025.63 × 8,117.91
  4. Step 4: Simplify right side
    13,783.55x = 154,448,311.44
  5. Step 5: Solve for x
    x = 154,448,311.44/13,783.55
  6. Step 6: Final answer
    x = 11,205.27

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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.