Home / 11,211.91-16,813.95-3,312.34

Finding the Fourth Proportional to 11,211.91, 16,813.95 and 3,312.34

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Solution

The fourth proportional to 11,211.91, 16,813.95 and 3,312.34 is: 4,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.91 : 16,813.95 = 3,312.34 : x
  2. Step 2: Convert to fraction form
    11,211.91/16,813.95 = 3,312.34/x
  3. Step 3: Cross multiply
    11,211.91x = 16,813.95 × 3,312.34
  4. Step 4: Simplify right side
    11,211.91x = 55,693,519.14
  5. Step 5: Solve for x
    x = 55,693,519.14/11,211.91
  6. Step 6: Final answer
    x = 4,967.35

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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.