Home / 13,394.70-18,485.25-7,426.26

Finding the Fourth Proportional to 13,394.70, 18,485.25 and 7,426.26

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Solution

The fourth proportional to 13,394.70, 18,485.25 and 7,426.26 is: 10,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.70 : 18,485.25 = 7,426.26 : x
  2. Step 2: Convert to fraction form
    13,394.70/18,485.25 = 7,426.26/x
  3. Step 3: Cross multiply
    13,394.70x = 18,485.25 × 7,426.26
  4. Step 4: Simplify right side
    13,394.70x = 137,276,272.67
  5. Step 5: Solve for x
    x = 137,276,272.67/13,394.70
  6. Step 6: Final answer
    x = 10,248.55

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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.