Home / 19,669.07-27,143.63-10,716.57

Finding the Fourth Proportional to 19,669.07, 27,143.63 and 10,716.57

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Solution

The fourth proportional to 19,669.07, 27,143.63 and 10,716.57 is: 14,789.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.07 : 27,143.63 = 10,716.57 : x
  2. Step 2: Convert to fraction form
    19,669.07/27,143.63 = 10,716.57/x
  3. Step 3: Cross multiply
    19,669.07x = 27,143.63 × 10,716.57
  4. Step 4: Simplify right side
    19,669.07x = 290,886,489.51
  5. Step 5: Solve for x
    x = 290,886,489.51/19,669.07
  6. Step 6: Final answer
    x = 14,789.03

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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.