Home / 19,558.76-26,989.89-11,491.22

Finding the Fourth Proportional to 19,558.76, 26,989.89 and 11,491.22

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Solution

The fourth proportional to 19,558.76, 26,989.89 and 11,491.22 is: 15,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.76 : 26,989.89 = 11,491.22 : x
  2. Step 2: Convert to fraction form
    19,558.76/26,989.89 = 11,491.22/x
  3. Step 3: Cross multiply
    19,558.76x = 26,989.89 × 11,491.22
  4. Step 4: Simplify right side
    19,558.76x = 310,146,763.77
  5. Step 5: Solve for x
    x = 310,146,763.77/19,558.76
  6. Step 6: Final answer
    x = 15,857.18

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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.