Home / 13,190.67-18,202.59-7,888.41

Finding the Fourth Proportional to 13,190.67, 18,202.59 and 7,888.41

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Solution

The fourth proportional to 13,190.67, 18,202.59 and 7,888.41 is: 10,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.67 : 18,202.59 = 7,888.41 : x
  2. Step 2: Convert to fraction form
    13,190.67/18,202.59 = 7,888.41/x
  3. Step 3: Cross multiply
    13,190.67x = 18,202.59 × 7,888.41
  4. Step 4: Simplify right side
    13,190.67x = 143,589,492.98
  5. Step 5: Solve for x
    x = 143,589,492.98/13,190.67
  6. Step 6: Final answer
    x = 10,885.69

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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.