Home / 13,619.45-18,798.39-7,653.03

Finding the Fourth Proportional to 13,619.45, 18,798.39 and 7,653.03

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Solution

The fourth proportional to 13,619.45, 18,798.39 and 7,653.03 is: 10,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.45 : 18,798.39 = 7,653.03 : x
  2. Step 2: Convert to fraction form
    13,619.45/18,798.39 = 7,653.03/x
  3. Step 3: Cross multiply
    13,619.45x = 18,798.39 × 7,653.03
  4. Step 4: Simplify right side
    13,619.45x = 143,864,642.62
  5. Step 5: Solve for x
    x = 143,864,642.62/13,619.45
  6. Step 6: Final answer
    x = 10,563.18

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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.