Home / 13,125.02-18,112.26-7,156.74

Finding the Fourth Proportional to 13,125.02, 18,112.26 and 7,156.74

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Solution

The fourth proportional to 13,125.02, 18,112.26 and 7,156.74 is: 9,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.02 : 18,112.26 = 7,156.74 : x
  2. Step 2: Convert to fraction form
    13,125.02/18,112.26 = 7,156.74/x
  3. Step 3: Cross multiply
    13,125.02x = 18,112.26 × 7,156.74
  4. Step 4: Simplify right side
    13,125.02x = 129,624,735.63
  5. Step 5: Solve for x
    x = 129,624,735.63/13,125.02
  6. Step 6: Final answer
    x = 9,876.16

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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.