Home / 13,905.77-19,190.18-7,617.74

Finding the Fourth Proportional to 13,905.77, 19,190.18 and 7,617.74

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Solution

The fourth proportional to 13,905.77, 19,190.18 and 7,617.74 is: 10,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.77 : 19,190.18 = 7,617.74 : x
  2. Step 2: Convert to fraction form
    13,905.77/19,190.18 = 7,617.74/x
  3. Step 3: Cross multiply
    13,905.77x = 19,190.18 × 7,617.74
  4. Step 4: Simplify right side
    13,905.77x = 146,185,724.89
  5. Step 5: Solve for x
    x = 146,185,724.89/13,905.77
  6. Step 6: Final answer
    x = 10,512.60

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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.