Home / 12,883.09-19,330.13-5,491.03

Finding the Fourth Proportional to 12,883.09, 19,330.13 and 5,491.03

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Solution

The fourth proportional to 12,883.09, 19,330.13 and 5,491.03 is: 8,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.09 : 19,330.13 = 5,491.03 : x
  2. Step 2: Convert to fraction form
    12,883.09/19,330.13 = 5,491.03/x
  3. Step 3: Cross multiply
    12,883.09x = 19,330.13 × 5,491.03
  4. Step 4: Simplify right side
    12,883.09x = 106,142,289.14
  5. Step 5: Solve for x
    x = 106,142,289.14/12,883.09
  6. Step 6: Final answer
    x = 8,238.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.