Home / 13,349.60-18,422.04-8,047.52

Finding the Fourth Proportional to 13,349.60, 18,422.04 and 8,047.52

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Solution

The fourth proportional to 13,349.60, 18,422.04 and 8,047.52 is: 11,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.60 : 18,422.04 = 8,047.52 : x
  2. Step 2: Convert to fraction form
    13,349.60/18,422.04 = 8,047.52/x
  3. Step 3: Cross multiply
    13,349.60x = 18,422.04 × 8,047.52
  4. Step 4: Simplify right side
    13,349.60x = 148,251,735.34
  5. Step 5: Solve for x
    x = 148,251,735.34/13,349.60
  6. Step 6: Final answer
    x = 11,105.33

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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.