Home / 19,661.81-29,466.41-7,170.08

Finding the Fourth Proportional to 19,661.81, 29,466.41 and 7,170.08

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Solution

The fourth proportional to 19,661.81, 29,466.41 and 7,170.08 is: 10,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.81 : 29,466.41 = 7,170.08 : x
  2. Step 2: Convert to fraction form
    19,661.81/29,466.41 = 7,170.08/x
  3. Step 3: Cross multiply
    19,661.81x = 29,466.41 × 7,170.08
  4. Step 4: Simplify right side
    19,661.81x = 211,276,333.83
  5. Step 5: Solve for x
    x = 211,276,333.83/19,661.81
  6. Step 6: Final answer
    x = 10,745.52

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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.