Home / 13,899.56-19,180.66-7,611.80

Finding the Fourth Proportional to 13,899.56, 19,180.66 and 7,611.80

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Solution

The fourth proportional to 13,899.56, 19,180.66 and 7,611.80 is: 10,503.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.56 : 19,180.66 = 7,611.80 : x
  2. Step 2: Convert to fraction form
    13,899.56/19,180.66 = 7,611.80/x
  3. Step 3: Cross multiply
    13,899.56x = 19,180.66 × 7,611.80
  4. Step 4: Simplify right side
    13,899.56x = 145,999,347.79
  5. Step 5: Solve for x
    x = 145,999,347.79/13,899.56
  6. Step 6: Final answer
    x = 10,503.88

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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.