Home / 12,609.50-17,403.56-7,235.12

Finding the Fourth Proportional to 12,609.50, 17,403.56 and 7,235.12

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Solution

The fourth proportional to 12,609.50, 17,403.56 and 7,235.12 is: 9,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.50 : 17,403.56 = 7,235.12 : x
  2. Step 2: Convert to fraction form
    12,609.50/17,403.56 = 7,235.12/x
  3. Step 3: Cross multiply
    12,609.50x = 17,403.56 × 7,235.12
  4. Step 4: Simplify right side
    12,609.50x = 125,916,845.03
  5. Step 5: Solve for x
    x = 125,916,845.03/12,609.50
  6. Step 6: Final answer
    x = 9,985.87

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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.