Home / 13,412.12-20,118.38-4,647.24

Finding the Fourth Proportional to 13,412.12, 20,118.38 and 4,647.24

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Solution

The fourth proportional to 13,412.12, 20,118.38 and 4,647.24 is: 6,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.12 : 20,118.38 = 4,647.24 : x
  2. Step 2: Convert to fraction form
    13,412.12/20,118.38 = 4,647.24/x
  3. Step 3: Cross multiply
    13,412.12x = 20,118.38 × 4,647.24
  4. Step 4: Simplify right side
    13,412.12x = 93,494,917.04
  5. Step 5: Solve for x
    x = 93,494,917.04/13,412.12
  6. Step 6: Final answer
    x = 6,970.93

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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.