Home / 12,302,676.18-16,965,069.57-8,171,209.62

Finding the Fourth Proportional to 12,302,676.18, 16,965,069.57 and 8,171,209.62

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Solution

The fourth proportional to 12,302,676.18, 16,965,069.57 and 8,171,209.62 is: 11,267,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,676.18 : 16,965,069.57 = 8,171,209.62 : x
  2. Step 2: Convert to fraction form
    12,302,676.18/16,965,069.57 = 8,171,209.62/x
  3. Step 3: Cross multiply
    12,302,676.18x = 16,965,069.57 × 8,171,209.62
  4. Step 4: Simplify right side
    12,302,676.18x = 138,625,139,674,353.27
  5. Step 5: Solve for x
    x = 138,625,139,674,353.27/12,302,676.18
  6. Step 6: Final answer
    x = 11,267,884.94

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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.