Home / 8,154.61-12,176.49-7,692.60

Finding the Fourth Proportional to 8,154.61, 12,176.49 and 7,692.60

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Solution

The fourth proportional to 8,154.61, 12,176.49 and 7,692.60 is: 11,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.61 : 12,176.49 = 7,692.60 : x
  2. Step 2: Convert to fraction form
    8,154.61/12,176.49 = 7,692.60/x
  3. Step 3: Cross multiply
    8,154.61x = 12,176.49 × 7,692.60
  4. Step 4: Simplify right side
    8,154.61x = 93,668,941.48
  5. Step 5: Solve for x
    x = 93,668,941.48/8,154.61
  6. Step 6: Final answer
    x = 11,486.63

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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.