Home / 13,889.32-19,120.26-10,739.56

Finding the Fourth Proportional to 13,889.32, 19,120.26 and 10,739.56

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Solution

The fourth proportional to 13,889.32, 19,120.26 and 10,739.56 is: 14,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.32 : 19,120.26 = 10,739.56 : x
  2. Step 2: Convert to fraction form
    13,889.32/19,120.26 = 10,739.56/x
  3. Step 3: Cross multiply
    13,889.32x = 19,120.26 × 10,739.56
  4. Step 4: Simplify right side
    13,889.32x = 205,343,179.49
  5. Step 5: Solve for x
    x = 205,343,179.49/13,889.32
  6. Step 6: Final answer
    x = 14,784.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.