Home / 19,681.53-29,514.47-7,198.71

Finding the Fourth Proportional to 19,681.53, 29,514.47 and 7,198.71

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Solution

The fourth proportional to 19,681.53, 29,514.47 and 7,198.71 is: 10,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.53 : 29,514.47 = 7,198.71 : x
  2. Step 2: Convert to fraction form
    19,681.53/29,514.47 = 7,198.71/x
  3. Step 3: Cross multiply
    19,681.53x = 29,514.47 × 7,198.71
  4. Step 4: Simplify right side
    19,681.53x = 212,466,074.34
  5. Step 5: Solve for x
    x = 212,466,074.34/19,681.53
  6. Step 6: Final answer
    x = 10,795.20

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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.