Home / 8,676.20-13,004.70-4,783.40

Finding the Fourth Proportional to 8,676.20, 13,004.70 and 4,783.40

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Solution

The fourth proportional to 8,676.20, 13,004.70 and 4,783.40 is: 7,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.20 : 13,004.70 = 4,783.40 : x
  2. Step 2: Convert to fraction form
    8,676.20/13,004.70 = 4,783.40/x
  3. Step 3: Cross multiply
    8,676.20x = 13,004.70 × 4,783.40
  4. Step 4: Simplify right side
    8,676.20x = 62,206,681.98
  5. Step 5: Solve for x
    x = 62,206,681.98/8,676.20
  6. Step 6: Final answer
    x = 7,169.81

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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.