Home / 12,100.70-18,142.46-4,698.92

Finding the Fourth Proportional to 12,100.70, 18,142.46 and 4,698.92

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Solution

The fourth proportional to 12,100.70, 18,142.46 and 4,698.92 is: 7,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.70 : 18,142.46 = 4,698.92 : x
  2. Step 2: Convert to fraction form
    12,100.70/18,142.46 = 4,698.92/x
  3. Step 3: Cross multiply
    12,100.70x = 18,142.46 × 4,698.92
  4. Step 4: Simplify right side
    12,100.70x = 85,249,968.14
  5. Step 5: Solve for x
    x = 85,249,968.14/12,100.70
  6. Step 6: Final answer
    x = 7,045.04

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1.5x scale

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.