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Finding the Fourth Proportional to 8,973.28, 13,365.14 and 8,504.90

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Solution

The fourth proportional to 8,973.28, 13,365.14 and 8,504.90 is: 12,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.28 : 13,365.14 = 8,504.90 : x
  2. Step 2: Convert to fraction form
    8,973.28/13,365.14 = 8,504.90/x
  3. Step 3: Cross multiply
    8,973.28x = 13,365.14 × 8,504.90
  4. Step 4: Simplify right side
    8,973.28x = 113,669,119.96
  5. Step 5: Solve for x
    x = 113,669,119.96/8,973.28
  6. Step 6: Final answer
    x = 12,667.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.