Home / 19,783.04-29,674.56-8,091.52

Finding the Fourth Proportional to 19,783.04, 29,674.56 and 8,091.52

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Solution

The fourth proportional to 19,783.04, 29,674.56 and 8,091.52 is: 12,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.04 : 29,674.56 = 8,091.52 : x
  2. Step 2: Convert to fraction form
    19,783.04/29,674.56 = 8,091.52/x
  3. Step 3: Cross multiply
    19,783.04x = 29,674.56 × 8,091.52
  4. Step 4: Simplify right side
    19,783.04x = 240,112,295.73
  5. Step 5: Solve for x
    x = 240,112,295.73/19,783.04
  6. Step 6: Final answer
    x = 12,137.28

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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.