Home / 19,813.55-29,720.97-7,336.72

Finding the Fourth Proportional to 19,813.55, 29,720.97 and 7,336.72

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Solution

The fourth proportional to 19,813.55, 29,720.97 and 7,336.72 is: 11,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.55 : 29,720.97 = 7,336.72 : x
  2. Step 2: Convert to fraction form
    19,813.55/29,720.97 = 7,336.72/x
  3. Step 3: Cross multiply
    19,813.55x = 29,720.97 × 7,336.72
  4. Step 4: Simplify right side
    19,813.55x = 218,054,360.72
  5. Step 5: Solve for x
    x = 218,054,360.72/19,813.55
  6. Step 6: Final answer
    x = 11,005.31

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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.