Home / 13,693.04-18,896.46-7,724.96

Finding the Fourth Proportional to 13,693.04, 18,896.46 and 7,724.96

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Solution

The fourth proportional to 13,693.04, 18,896.46 and 7,724.96 is: 10,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.04 : 18,896.46 = 7,724.96 : x
  2. Step 2: Convert to fraction form
    13,693.04/18,896.46 = 7,724.96/x
  3. Step 3: Cross multiply
    13,693.04x = 18,896.46 × 7,724.96
  4. Step 4: Simplify right side
    13,693.04x = 145,974,397.64
  5. Step 5: Solve for x
    x = 145,974,397.64/13,693.04
  6. Step 6: Final answer
    x = 10,660.48

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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.