Home / 11,716.49-16,176.77-8,692.40

Finding the Fourth Proportional to 11,716.49, 16,176.77 and 8,692.40

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Solution

The fourth proportional to 11,716.49, 16,176.77 and 8,692.40 is: 12,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.49 : 16,176.77 = 8,692.40 : x
  2. Step 2: Convert to fraction form
    11,716.49/16,176.77 = 8,692.40/x
  3. Step 3: Cross multiply
    11,716.49x = 16,176.77 × 8,692.40
  4. Step 4: Simplify right side
    11,716.49x = 140,614,831.20
  5. Step 5: Solve for x
    x = 140,614,831.20/11,716.49
  6. Step 6: Final answer
    x = 12,001.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.