Home / 11,856.83-16,362.54-6,479.42

Finding the Fourth Proportional to 11,856.83, 16,362.54 and 6,479.42

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Solution

The fourth proportional to 11,856.83, 16,362.54 and 6,479.42 is: 8,941.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.83 : 16,362.54 = 6,479.42 : x
  2. Step 2: Convert to fraction form
    11,856.83/16,362.54 = 6,479.42/x
  3. Step 3: Cross multiply
    11,856.83x = 16,362.54 × 6,479.42
  4. Step 4: Simplify right side
    11,856.83x = 106,019,687.11
  5. Step 5: Solve for x
    x = 106,019,687.11/11,856.83
  6. Step 6: Final answer
    x = 8,941.66

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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.