Home / 19,139.39-26,406.27-11,583.31

Finding the Fourth Proportional to 19,139.39, 26,406.27 and 11,583.31

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Solution

The fourth proportional to 19,139.39, 26,406.27 and 11,583.31 is: 15,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.39 : 26,406.27 = 11,583.31 : x
  2. Step 2: Convert to fraction form
    19,139.39/26,406.27 = 11,583.31/x
  3. Step 3: Cross multiply
    19,139.39x = 26,406.27 × 11,583.31
  4. Step 4: Simplify right side
    19,139.39x = 305,872,011.35
  5. Step 5: Solve for x
    x = 305,872,011.35/19,139.39
  6. Step 6: Final answer
    x = 15,981.28

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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.