Home / 11,220.48-16,826.76-3,320.91

Finding the Fourth Proportional to 11,220.48, 16,826.76 and 3,320.91

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Solution

The fourth proportional to 11,220.48, 16,826.76 and 3,320.91 is: 4,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.48 : 16,826.76 = 3,320.91 : x
  2. Step 2: Convert to fraction form
    11,220.48/16,826.76 = 3,320.91/x
  3. Step 3: Cross multiply
    11,220.48x = 16,826.76 × 3,320.91
  4. Step 4: Simplify right side
    11,220.48x = 55,880,155.55
  5. Step 5: Solve for x
    x = 55,880,155.55/11,220.48
  6. Step 6: Final answer
    x = 4,980.19

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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.