Home / 13,764.60-18,995.14-7,476.96

Finding the Fourth Proportional to 13,764.60, 18,995.14 and 7,476.96

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Solution

The fourth proportional to 13,764.60, 18,995.14 and 7,476.96 is: 10,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.60 : 18,995.14 = 7,476.96 : x
  2. Step 2: Convert to fraction form
    13,764.60/18,995.14 = 7,476.96/x
  3. Step 3: Cross multiply
    13,764.60x = 18,995.14 × 7,476.96
  4. Step 4: Simplify right side
    13,764.60x = 142,025,901.97
  5. Step 5: Solve for x
    x = 142,025,901.97/13,764.60
  6. Step 6: Final answer
    x = 10,318.20

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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.