Home / 13,619.71-18,795.91-7,570.61

Finding the Fourth Proportional to 13,619.71, 18,795.91 and 7,570.61

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Solution

The fourth proportional to 13,619.71, 18,795.91 and 7,570.61 is: 10,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.71 : 18,795.91 = 7,570.61 : x
  2. Step 2: Convert to fraction form
    13,619.71/18,795.91 = 7,570.61/x
  3. Step 3: Cross multiply
    13,619.71x = 18,795.91 × 7,570.61
  4. Step 4: Simplify right side
    13,619.71x = 142,296,410.23
  5. Step 5: Solve for x
    x = 142,296,410.23/13,619.71
  6. Step 6: Final answer
    x = 10,447.83

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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.