Home / 19,783.05-29,673.09-7,936.40

Finding the Fourth Proportional to 19,783.05, 29,673.09 and 7,936.40

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Solution

The fourth proportional to 19,783.05, 29,673.09 and 7,936.40 is: 11,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.05 : 29,673.09 = 7,936.40 : x
  2. Step 2: Convert to fraction form
    19,783.05/29,673.09 = 7,936.40/x
  3. Step 3: Cross multiply
    19,783.05x = 29,673.09 × 7,936.40
  4. Step 4: Simplify right side
    19,783.05x = 235,497,363.11
  5. Step 5: Solve for x
    x = 235,497,363.11/19,783.05
  6. Step 6: Final answer
    x = 11,904.00

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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.