Home / 11,406.32-17,109.50-3,615.11

Finding the Fourth Proportional to 11,406.32, 17,109.50 and 3,615.11

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Solution

The fourth proportional to 11,406.32, 17,109.50 and 3,615.11 is: 5,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.32 : 17,109.50 = 3,615.11 : x
  2. Step 2: Convert to fraction form
    11,406.32/17,109.50 = 3,615.11/x
  3. Step 3: Cross multiply
    11,406.32x = 17,109.50 × 3,615.11
  4. Step 4: Simplify right side
    11,406.32x = 61,852,620.92
  5. Step 5: Solve for x
    x = 61,852,620.92/11,406.32
  6. Step 6: Final answer
    x = 5,422.66

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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.