Home / 11,005.40-16,509.70-3,610.20

Finding the Fourth Proportional to 11,005.40, 16,509.70 and 3,610.20

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Solution

The fourth proportional to 11,005.40, 16,509.70 and 3,610.20 is: 5,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.40 : 16,509.70 = 3,610.20 : x
  2. Step 2: Convert to fraction form
    11,005.40/16,509.70 = 3,610.20/x
  3. Step 3: Cross multiply
    11,005.40x = 16,509.70 × 3,610.20
  4. Step 4: Simplify right side
    11,005.40x = 59,603,318.94
  5. Step 5: Solve for x
    x = 59,603,318.94/11,005.40
  6. Step 6: Final answer
    x = 5,415.82

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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.