Home / 19,040.40-26,291.88-11,969.10

Finding the Fourth Proportional to 19,040.40, 26,291.88 and 11,969.10

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Solution

The fourth proportional to 19,040.40, 26,291.88 and 11,969.10 is: 16,527.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.40 : 26,291.88 = 11,969.10 : x
  2. Step 2: Convert to fraction form
    19,040.40/26,291.88 = 11,969.10/x
  3. Step 3: Cross multiply
    19,040.40x = 26,291.88 × 11,969.10
  4. Step 4: Simplify right side
    19,040.40x = 314,690,140.91
  5. Step 5: Solve for x
    x = 314,690,140.91/19,040.40
  6. Step 6: Final answer
    x = 16,527.50

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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.