Home / 13,900.06-19,181.34-7,611.22

Finding the Fourth Proportional to 13,900.06, 19,181.34 and 7,611.22

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Solution

The fourth proportional to 13,900.06, 19,181.34 and 7,611.22 is: 10,503.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.06 : 19,181.34 = 7,611.22 : x
  2. Step 2: Convert to fraction form
    13,900.06/19,181.34 = 7,611.22/x
  3. Step 3: Cross multiply
    13,900.06x = 19,181.34 × 7,611.22
  4. Step 4: Simplify right side
    13,900.06x = 145,993,398.63
  5. Step 5: Solve for x
    x = 145,993,398.63/13,900.06
  6. Step 6: Final answer
    x = 10,503.08

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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.