Home / 13,225.18-18,251.58-7,257.46

Finding the Fourth Proportional to 13,225.18, 18,251.58 and 7,257.46

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Solution

The fourth proportional to 13,225.18, 18,251.58 and 7,257.46 is: 10,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.18 : 18,251.58 = 7,257.46 : x
  2. Step 2: Convert to fraction form
    13,225.18/18,251.58 = 7,257.46/x
  3. Step 3: Cross multiply
    13,225.18x = 18,251.58 × 7,257.46
  4. Step 4: Simplify right side
    13,225.18x = 132,460,111.79
  5. Step 5: Solve for x
    x = 132,460,111.79/13,225.18
  6. Step 6: Final answer
    x = 10,015.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.