Home / 12,214.40-16,855.11-11,856.10

Finding the Fourth Proportional to 12,214.40, 16,855.11 and 11,856.10

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Solution

The fourth proportional to 12,214.40, 16,855.11 and 11,856.10 is: 16,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.40 : 16,855.11 = 11,856.10 : x
  2. Step 2: Convert to fraction form
    12,214.40/16,855.11 = 11,856.10/x
  3. Step 3: Cross multiply
    12,214.40x = 16,855.11 × 11,856.10
  4. Step 4: Simplify right side
    12,214.40x = 199,835,876.71
  5. Step 5: Solve for x
    x = 199,835,876.71/12,214.40
  6. Step 6: Final answer
    x = 16,360.69

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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.