Home / 13,772.26-19,005.72-7,484.63

Finding the Fourth Proportional to 13,772.26, 19,005.72 and 7,484.63

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Solution

The fourth proportional to 13,772.26, 19,005.72 and 7,484.63 is: 10,328.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.26 : 19,005.72 = 7,484.63 : x
  2. Step 2: Convert to fraction form
    13,772.26/19,005.72 = 7,484.63/x
  3. Step 3: Cross multiply
    13,772.26x = 19,005.72 × 7,484.63
  4. Step 4: Simplify right side
    13,772.26x = 142,250,782.08
  5. Step 5: Solve for x
    x = 142,250,782.08/13,772.26
  6. Step 6: Final answer
    x = 10,328.79

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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.