Home / 13,204.01-18,221.05-7,235.75

Finding the Fourth Proportional to 13,204.01, 18,221.05 and 7,235.75

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Solution

The fourth proportional to 13,204.01, 18,221.05 and 7,235.75 is: 9,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.01 : 18,221.05 = 7,235.75 : x
  2. Step 2: Convert to fraction form
    13,204.01/18,221.05 = 7,235.75/x
  3. Step 3: Cross multiply
    13,204.01x = 18,221.05 × 7,235.75
  4. Step 4: Simplify right side
    13,204.01x = 131,842,962.54
  5. Step 5: Solve for x
    x = 131,842,962.54/13,204.01
  6. Step 6: Final answer
    x = 9,985.07

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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.