Home / 13,619.66-18,795.62-7,651.20

Finding the Fourth Proportional to 13,619.66, 18,795.62 and 7,651.20

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Solution

The fourth proportional to 13,619.66, 18,795.62 and 7,651.20 is: 10,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.66 : 18,795.62 = 7,651.20 : x
  2. Step 2: Convert to fraction form
    13,619.66/18,795.62 = 7,651.20/x
  3. Step 3: Cross multiply
    13,619.66x = 18,795.62 × 7,651.20
  4. Step 4: Simplify right side
    13,619.66x = 143,809,047.74
  5. Step 5: Solve for x
    x = 143,809,047.74/13,619.66
  6. Step 6: Final answer
    x = 10,558.93

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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.