Home / 8,692.41-13,038.58-3,145.74

Finding the Fourth Proportional to 8,692.41, 13,038.58 and 3,145.74

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Solution

The fourth proportional to 8,692.41, 13,038.58 and 3,145.74 is: 4,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.41 : 13,038.58 = 3,145.74 : x
  2. Step 2: Convert to fraction form
    8,692.41/13,038.58 = 3,145.74/x
  3. Step 3: Cross multiply
    8,692.41x = 13,038.58 × 3,145.74
  4. Step 4: Simplify right side
    8,692.41x = 41,015,937.69
  5. Step 5: Solve for x
    x = 41,015,937.69/8,692.41
  6. Step 6: Final answer
    x = 4,718.59

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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.