Home / 14,144.67-19,519.11-7,857.45

Finding the Fourth Proportional to 14,144.67, 19,519.11 and 7,857.45

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Solution

The fourth proportional to 14,144.67, 19,519.11 and 7,857.45 is: 10,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.67 : 19,519.11 = 7,857.45 : x
  2. Step 2: Convert to fraction form
    14,144.67/19,519.11 = 7,857.45/x
  3. Step 3: Cross multiply
    14,144.67x = 19,519.11 × 7,857.45
  4. Step 4: Simplify right side
    14,144.67x = 153,370,430.87
  5. Step 5: Solve for x
    x = 153,370,430.87/14,144.67
  6. Step 6: Final answer
    x = 10,842.98

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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.