Home / 11,261.70-16,897.35-5,415.30

Finding the Fourth Proportional to 11,261.70, 16,897.35 and 5,415.30

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Solution

The fourth proportional to 11,261.70, 16,897.35 and 5,415.30 is: 8,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.70 : 16,897.35 = 5,415.30 : x
  2. Step 2: Convert to fraction form
    11,261.70/16,897.35 = 5,415.30/x
  3. Step 3: Cross multiply
    11,261.70x = 16,897.35 × 5,415.30
  4. Step 4: Simplify right side
    11,261.70x = 91,504,219.46
  5. Step 5: Solve for x
    x = 91,504,219.46/11,261.70
  6. Step 6: Final answer
    x = 8,125.26

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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.