Home / 19,491.60-26,905.33-11,533.81

Finding the Fourth Proportional to 19,491.60, 26,905.33 and 11,533.81

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Solution

The fourth proportional to 19,491.60, 26,905.33 and 11,533.81 is: 15,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.60 : 26,905.33 = 11,533.81 : x
  2. Step 2: Convert to fraction form
    19,491.60/26,905.33 = 11,533.81/x
  3. Step 3: Cross multiply
    19,491.60x = 26,905.33 × 11,533.81
  4. Step 4: Simplify right side
    19,491.60x = 310,320,964.21
  5. Step 5: Solve for x
    x = 310,320,964.21/19,491.60
  6. Step 6: Final answer
    x = 15,920.75

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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.