Home / 19,813.24-29,721.48-8,126.56

Finding the Fourth Proportional to 19,813.24, 29,721.48 and 8,126.56

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Solution

The fourth proportional to 19,813.24, 29,721.48 and 8,126.56 is: 12,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.24 : 29,721.48 = 8,126.56 : x
  2. Step 2: Convert to fraction form
    19,813.24/29,721.48 = 8,126.56/x
  3. Step 3: Cross multiply
    19,813.24x = 29,721.48 × 8,126.56
  4. Step 4: Simplify right side
    19,813.24x = 241,533,390.51
  5. Step 5: Solve for x
    x = 241,533,390.51/19,813.24
  6. Step 6: Final answer
    x = 12,190.50

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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.