Home / 19,794.06-29,649.78-11,871.45

Finding the Fourth Proportional to 19,794.06, 29,649.78 and 11,871.45

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Solution

The fourth proportional to 19,794.06, 29,649.78 and 11,871.45 is: 17,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.06 : 29,649.78 = 11,871.45 : x
  2. Step 2: Convert to fraction form
    19,794.06/29,649.78 = 11,871.45/x
  3. Step 3: Cross multiply
    19,794.06x = 29,649.78 × 11,871.45
  4. Step 4: Simplify right side
    19,794.06x = 351,985,880.78
  5. Step 5: Solve for x
    x = 351,985,880.78/19,794.06
  6. Step 6: Final answer
    x = 17,782.40

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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.