Home / 13,928.13-19,220.91-7,554.75

Finding the Fourth Proportional to 13,928.13, 19,220.91 and 7,554.75

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Solution

The fourth proportional to 13,928.13, 19,220.91 and 7,554.75 is: 10,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.13 : 19,220.91 = 7,554.75 : x
  2. Step 2: Convert to fraction form
    13,928.13/19,220.91 = 7,554.75/x
  3. Step 3: Cross multiply
    13,928.13x = 19,220.91 × 7,554.75
  4. Step 4: Simplify right side
    13,928.13x = 145,209,169.82
  5. Step 5: Solve for x
    x = 145,209,169.82/13,928.13
  6. Step 6: Final answer
    x = 10,425.60

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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.