Home / 13,951.05-19,255.77-7,986.17

Finding the Fourth Proportional to 13,951.05, 19,255.77 and 7,986.17

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Solution

The fourth proportional to 13,951.05, 19,255.77 and 7,986.17 is: 11,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.05 : 19,255.77 = 7,986.17 : x
  2. Step 2: Convert to fraction form
    13,951.05/19,255.77 = 7,986.17/x
  3. Step 3: Cross multiply
    13,951.05x = 19,255.77 × 7,986.17
  4. Step 4: Simplify right side
    13,951.05x = 153,779,756.42
  5. Step 5: Solve for x
    x = 153,779,756.42/13,951.05
  6. Step 6: Final answer
    x = 11,022.81

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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.