Home / 19,785.09-29,674.42-7,310.98

Finding the Fourth Proportional to 19,785.09, 29,674.42 and 7,310.98

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Solution

The fourth proportional to 19,785.09, 29,674.42 and 7,310.98 is: 10,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.09 : 29,674.42 = 7,310.98 : x
  2. Step 2: Convert to fraction form
    19,785.09/29,674.42 = 7,310.98/x
  3. Step 3: Cross multiply
    19,785.09x = 29,674.42 × 7,310.98
  4. Step 4: Simplify right side
    19,785.09x = 216,949,224.25
  5. Step 5: Solve for x
    x = 216,949,224.25/19,785.09
  6. Step 6: Final answer
    x = 10,965.29

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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.