Home / 19,669.19-27,143.33-10,716.66

Finding the Fourth Proportional to 19,669.19, 27,143.33 and 10,716.66

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Solution

The fourth proportional to 19,669.19, 27,143.33 and 10,716.66 is: 14,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.19 : 27,143.33 = 10,716.66 : x
  2. Step 2: Convert to fraction form
    19,669.19/27,143.33 = 10,716.66/x
  3. Step 3: Cross multiply
    19,669.19x = 27,143.33 × 10,716.66
  4. Step 4: Simplify right side
    19,669.19x = 290,885,785.29
  5. Step 5: Solve for x
    x = 290,885,785.29/19,669.19
  6. Step 6: Final answer
    x = 14,788.91

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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.