Home / 13,586.58-18,750.83-7,619.27

Finding the Fourth Proportional to 13,586.58, 18,750.83 and 7,619.27

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Solution

The fourth proportional to 13,586.58, 18,750.83 and 7,619.27 is: 10,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.58 : 18,750.83 = 7,619.27 : x
  2. Step 2: Convert to fraction form
    13,586.58/18,750.83 = 7,619.27/x
  3. Step 3: Cross multiply
    13,586.58x = 18,750.83 × 7,619.27
  4. Step 4: Simplify right side
    13,586.58x = 142,867,504.64
  5. Step 5: Solve for x
    x = 142,867,504.64/13,586.58
  6. Step 6: Final answer
    x = 10,515.34

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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.