Home / 12,856.66-19,285.41-4,423.08

Finding the Fourth Proportional to 12,856.66, 19,285.41 and 4,423.08

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Solution

The fourth proportional to 12,856.66, 19,285.41 and 4,423.08 is: 6,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856.66 : 19,285.41 = 4,423.08 : x
  2. Step 2: Convert to fraction form
    12,856.66/19,285.41 = 4,423.08/x
  3. Step 3: Cross multiply
    12,856.66x = 19,285.41 × 4,423.08
  4. Step 4: Simplify right side
    12,856.66x = 85,300,911.26
  5. Step 5: Solve for x
    x = 85,300,911.26/12,856.66
  6. Step 6: Final answer
    x = 6,634.76

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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.