Home / 13,662.07-18,853.38-7,693.61

Finding the Fourth Proportional to 13,662.07, 18,853.38 and 7,693.61

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Solution

The fourth proportional to 13,662.07, 18,853.38 and 7,693.61 is: 10,617.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.07 : 18,853.38 = 7,693.61 : x
  2. Step 2: Convert to fraction form
    13,662.07/18,853.38 = 7,693.61/x
  3. Step 3: Cross multiply
    13,662.07x = 18,853.38 × 7,693.61
  4. Step 4: Simplify right side
    13,662.07x = 145,050,533.30
  5. Step 5: Solve for x
    x = 145,050,533.30/13,662.07
  6. Step 6: Final answer
    x = 10,617.03

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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.