Home / 19,909.67-27,466.11-12,838.37

Finding the Fourth Proportional to 19,909.67, 27,466.11 and 12,838.37

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Solution

The fourth proportional to 19,909.67, 27,466.11 and 12,838.37 is: 17,710.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.67 : 27,466.11 = 12,838.37 : x
  2. Step 2: Convert to fraction form
    19,909.67/27,466.11 = 12,838.37/x
  3. Step 3: Cross multiply
    19,909.67x = 27,466.11 × 12,838.37
  4. Step 4: Simplify right side
    19,909.67x = 352,619,945.31
  5. Step 5: Solve for x
    x = 352,619,945.31/19,909.67
  6. Step 6: Final answer
    x = 17,710.99

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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.