Home / 19,761.28-29,653.62-7,290.07

Finding the Fourth Proportional to 19,761.28, 29,653.62 and 7,290.07

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Solution

The fourth proportional to 19,761.28, 29,653.62 and 7,290.07 is: 10,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.28 : 29,653.62 = 7,290.07 : x
  2. Step 2: Convert to fraction form
    19,761.28/29,653.62 = 7,290.07/x
  3. Step 3: Cross multiply
    19,761.28x = 29,653.62 × 7,290.07
  4. Step 4: Simplify right side
    19,761.28x = 216,176,965.55
  5. Step 5: Solve for x
    x = 216,176,965.55/19,761.28
  6. Step 6: Final answer
    x = 10,939.42

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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.