Home / 8,931.93-13,399.77-2,692.40

Finding the Fourth Proportional to 8,931.93, 13,399.77 and 2,692.40

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Solution

The fourth proportional to 8,931.93, 13,399.77 and 2,692.40 is: 4,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.93 : 13,399.77 = 2,692.40 : x
  2. Step 2: Convert to fraction form
    8,931.93/13,399.77 = 2,692.40/x
  3. Step 3: Cross multiply
    8,931.93x = 13,399.77 × 2,692.40
  4. Step 4: Simplify right side
    8,931.93x = 36,077,540.75
  5. Step 5: Solve for x
    x = 36,077,540.75/8,931.93
  6. Step 6: Final answer
    x = 4,039.17

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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.