Home / 8,783.72-13,171.44-2,938.76

Finding the Fourth Proportional to 8,783.72, 13,171.44 and 2,938.76

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Solution

The fourth proportional to 8,783.72, 13,171.44 and 2,938.76 is: 4,406.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.72 : 13,171.44 = 2,938.76 : x
  2. Step 2: Convert to fraction form
    8,783.72/13,171.44 = 2,938.76/x
  3. Step 3: Cross multiply
    8,783.72x = 13,171.44 × 2,938.76
  4. Step 4: Simplify right side
    8,783.72x = 38,707,701.01
  5. Step 5: Solve for x
    x = 38,707,701.01/8,783.72
  6. Step 6: Final answer
    x = 4,406.75

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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.