Home / 13,619.16-18,794.25-7,650.81

Finding the Fourth Proportional to 13,619.16, 18,794.25 and 7,650.81

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Solution

The fourth proportional to 13,619.16, 18,794.25 and 7,650.81 is: 10,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.16 : 18,794.25 = 7,650.81 : x
  2. Step 2: Convert to fraction form
    13,619.16/18,794.25 = 7,650.81/x
  3. Step 3: Cross multiply
    13,619.16x = 18,794.25 × 7,650.81
  4. Step 4: Simplify right side
    13,619.16x = 143,791,235.84
  5. Step 5: Solve for x
    x = 143,791,235.84/13,619.16
  6. Step 6: Final answer
    x = 10,558.01

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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.