Home / 19,813.07-29,729.29-8,718.37

Finding the Fourth Proportional to 19,813.07, 29,729.29 and 8,718.37

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Solution

The fourth proportional to 19,813.07, 29,729.29 and 8,718.37 is: 13,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.07 : 29,729.29 = 8,718.37 : x
  2. Step 2: Convert to fraction form
    19,813.07/29,729.29 = 8,718.37/x
  3. Step 3: Cross multiply
    19,813.07x = 29,729.29 × 8,718.37
  4. Step 4: Simplify right side
    19,813.07x = 259,191,037.51
  5. Step 5: Solve for x
    x = 259,191,037.51/19,813.07
  6. Step 6: Final answer
    x = 13,081.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.