Home / 13,106.56-19,645.99-9,406.78

Finding the Fourth Proportional to 13,106.56, 19,645.99 and 9,406.78

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Solution

The fourth proportional to 13,106.56, 19,645.99 and 9,406.78 is: 14,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.56 : 19,645.99 = 9,406.78 : x
  2. Step 2: Convert to fraction form
    13,106.56/19,645.99 = 9,406.78/x
  3. Step 3: Cross multiply
    13,106.56x = 19,645.99 × 9,406.78
  4. Step 4: Simplify right side
    13,106.56x = 184,805,596.60
  5. Step 5: Solve for x
    x = 184,805,596.60/13,106.56
  6. Step 6: Final answer
    x = 14,100.24

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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.