Home / 19,103.53-26,359.29-11,143.77

Finding the Fourth Proportional to 19,103.53, 26,359.29 and 11,143.77

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Solution

The fourth proportional to 19,103.53, 26,359.29 and 11,143.77 is: 15,376.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.53 : 26,359.29 = 11,143.77 : x
  2. Step 2: Convert to fraction form
    19,103.53/26,359.29 = 11,143.77/x
  3. Step 3: Cross multiply
    19,103.53x = 26,359.29 × 11,143.77
  4. Step 4: Simplify right side
    19,103.53x = 293,741,865.12
  5. Step 5: Solve for x
    x = 293,741,865.12/19,103.53
  6. Step 6: Final answer
    x = 15,376.31

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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.