Home / 19,785.71-27,283.57-13,062.51

Finding the Fourth Proportional to 19,785.71, 27,283.57 and 13,062.51

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Solution

The fourth proportional to 19,785.71, 27,283.57 and 13,062.51 is: 18,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.71 : 27,283.57 = 13,062.51 : x
  2. Step 2: Convert to fraction form
    19,785.71/27,283.57 = 13,062.51/x
  3. Step 3: Cross multiply
    19,785.71x = 27,283.57 × 13,062.51
  4. Step 4: Simplify right side
    19,785.71x = 356,391,873.30
  5. Step 5: Solve for x
    x = 356,391,873.30/19,785.71
  6. Step 6: Final answer
    x = 18,012.59

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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.