Home / 13,541.20-18,688.60-7,573.21

Finding the Fourth Proportional to 13,541.20, 18,688.60 and 7,573.21

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Solution

The fourth proportional to 13,541.20, 18,688.60 and 7,573.21 is: 10,452.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.20 : 18,688.60 = 7,573.21 : x
  2. Step 2: Convert to fraction form
    13,541.20/18,688.60 = 7,573.21/x
  3. Step 3: Cross multiply
    13,541.20x = 18,688.60 × 7,573.21
  4. Step 4: Simplify right side
    13,541.20x = 141,532,626.75
  5. Step 5: Solve for x
    x = 141,532,626.75/13,541.20
  6. Step 6: Final answer
    x = 10,452.00

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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.