Home / 8,945.57-13,420.38-4,783.38

Finding the Fourth Proportional to 8,945.57, 13,420.38 and 4,783.38

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Solution

The fourth proportional to 8,945.57, 13,420.38 and 4,783.38 is: 7,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.57 : 13,420.38 = 4,783.38 : x
  2. Step 2: Convert to fraction form
    8,945.57/13,420.38 = 4,783.38/x
  3. Step 3: Cross multiply
    8,945.57x = 13,420.38 × 4,783.38
  4. Step 4: Simplify right side
    8,945.57x = 64,194,777.28
  5. Step 5: Solve for x
    x = 64,194,777.28/8,945.57
  6. Step 6: Final answer
    x = 7,176.16

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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.