Home / 13,199.76-18,215.87-7,232.00

Finding the Fourth Proportional to 13,199.76, 18,215.87 and 7,232.00

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Solution

The fourth proportional to 13,199.76, 18,215.87 and 7,232.00 is: 9,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.76 : 18,215.87 = 7,232.00 : x
  2. Step 2: Convert to fraction form
    13,199.76/18,215.87 = 7,232.00/x
  3. Step 3: Cross multiply
    13,199.76x = 18,215.87 × 7,232.00
  4. Step 4: Simplify right side
    13,199.76x = 131,737,044.60
  5. Step 5: Solve for x
    x = 131,737,044.60/13,199.76
  6. Step 6: Final answer
    x = 9,980.26

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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.