Home / 14,113.29-21,190.77-7,885.53

Finding the Fourth Proportional to 14,113.29, 21,190.77 and 7,885.53

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Solution

The fourth proportional to 14,113.29, 21,190.77 and 7,885.53 is: 11,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.29 : 21,190.77 = 7,885.53 : x
  2. Step 2: Convert to fraction form
    14,113.29/21,190.77 = 7,885.53/x
  3. Step 3: Cross multiply
    14,113.29x = 21,190.77 × 7,885.53
  4. Step 4: Simplify right side
    14,113.29x = 167,100,452.56
  5. Step 5: Solve for x
    x = 167,100,452.56/14,113.29
  6. Step 6: Final answer
    x = 11,839.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.