Home / 11,220.10-16,830.15-3,427.90

Finding the Fourth Proportional to 11,220.10, 16,830.15 and 3,427.90

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Solution

The fourth proportional to 11,220.10, 16,830.15 and 3,427.90 is: 5,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.10 : 16,830.15 = 3,427.90 : x
  2. Step 2: Convert to fraction form
    11,220.10/16,830.15 = 3,427.90/x
  3. Step 3: Cross multiply
    11,220.10x = 16,830.15 × 3,427.90
  4. Step 4: Simplify right side
    11,220.10x = 57,692,071.19
  5. Step 5: Solve for x
    x = 57,692,071.19/11,220.10
  6. Step 6: Final answer
    x = 5,141.85

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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.