Home / 13,607.19-20,419.56-5,816.07

Finding the Fourth Proportional to 13,607.19, 20,419.56 and 5,816.07

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Solution

The fourth proportional to 13,607.19, 20,419.56 and 5,816.07 is: 8,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.19 : 20,419.56 = 5,816.07 : x
  2. Step 2: Convert to fraction form
    13,607.19/20,419.56 = 5,816.07/x
  3. Step 3: Cross multiply
    13,607.19x = 20,419.56 × 5,816.07
  4. Step 4: Simplify right side
    13,607.19x = 118,761,590.33
  5. Step 5: Solve for x
    x = 118,761,590.33/13,607.19
  6. Step 6: Final answer
    x = 8,727.86

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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.