Home / 11,205.42-16,810.65-3,415.02

Finding the Fourth Proportional to 11,205.42, 16,810.65 and 3,415.02

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Solution

The fourth proportional to 11,205.42, 16,810.65 and 3,415.02 is: 5,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.42 : 16,810.65 = 3,415.02 : x
  2. Step 2: Convert to fraction form
    11,205.42/16,810.65 = 3,415.02/x
  3. Step 3: Cross multiply
    11,205.42x = 16,810.65 × 3,415.02
  4. Step 4: Simplify right side
    11,205.42x = 57,408,705.96
  5. Step 5: Solve for x
    x = 57,408,705.96/11,205.42
  6. Step 6: Final answer
    x = 5,123.30

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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.