Home / 19,809.48-29,725.38-8,130.90

Finding the Fourth Proportional to 19,809.48, 29,725.38 and 8,130.90

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Solution

The fourth proportional to 19,809.48, 29,725.38 and 8,130.90 is: 12,200.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.48 : 29,725.38 = 8,130.90 : x
  2. Step 2: Convert to fraction form
    19,809.48/29,725.38 = 8,130.90/x
  3. Step 3: Cross multiply
    19,809.48x = 29,725.38 × 8,130.90
  4. Step 4: Simplify right side
    19,809.48x = 241,694,092.24
  5. Step 5: Solve for x
    x = 241,694,092.24/19,809.48
  6. Step 6: Final answer
    x = 12,200.93

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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.