Home / 13,960.89-19,265.85-7,672.86

Finding the Fourth Proportional to 13,960.89, 19,265.85 and 7,672.86

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Solution

The fourth proportional to 13,960.89, 19,265.85 and 7,672.86 is: 10,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.89 : 19,265.85 = 7,672.86 : x
  2. Step 2: Convert to fraction form
    13,960.89/19,265.85 = 7,672.86/x
  3. Step 3: Cross multiply
    13,960.89x = 19,265.85 × 7,672.86
  4. Step 4: Simplify right side
    13,960.89x = 147,824,169.83
  5. Step 5: Solve for x
    x = 147,824,169.83/13,960.89
  6. Step 6: Final answer
    x = 10,588.45

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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.