Home / 13,754.32-18,980.75-8,375.51

Finding the Fourth Proportional to 13,754.32, 18,980.75 and 8,375.51

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Solution

The fourth proportional to 13,754.32, 18,980.75 and 8,375.51 is: 11,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.32 : 18,980.75 = 8,375.51 : x
  2. Step 2: Convert to fraction form
    13,754.32/18,980.75 = 8,375.51/x
  3. Step 3: Cross multiply
    13,754.32x = 18,980.75 × 8,375.51
  4. Step 4: Simplify right side
    13,754.32x = 158,973,529.82
  5. Step 5: Solve for x
    x = 158,973,529.82/13,754.32
  6. Step 6: Final answer
    x = 11,558.08

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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.