Home / 19,193.71-26,487.38-11,128.93

Finding the Fourth Proportional to 19,193.71, 26,487.38 and 11,128.93

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Solution

The fourth proportional to 19,193.71, 26,487.38 and 11,128.93 is: 15,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,193.71 : 26,487.38 = 11,128.93 : x
  2. Step 2: Convert to fraction form
    19,193.71/26,487.38 = 11,128.93/x
  3. Step 3: Cross multiply
    19,193.71x = 26,487.38 × 11,128.93
  4. Step 4: Simplify right side
    19,193.71x = 294,776,197.90
  5. Step 5: Solve for x
    x = 294,776,197.90/19,193.71
  6. Step 6: Final answer
    x = 15,357.96

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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.