Home / 13,670.26-18,864.96-7,382.64

Finding the Fourth Proportional to 13,670.26, 18,864.96 and 7,382.64

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Solution

The fourth proportional to 13,670.26, 18,864.96 and 7,382.64 is: 10,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.26 : 18,864.96 = 7,382.64 : x
  2. Step 2: Convert to fraction form
    13,670.26/18,864.96 = 7,382.64/x
  3. Step 3: Cross multiply
    13,670.26x = 18,864.96 × 7,382.64
  4. Step 4: Simplify right side
    13,670.26x = 139,273,109.87
  5. Step 5: Solve for x
    x = 139,273,109.87/13,670.26
  6. Step 6: Final answer
    x = 10,188.04

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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.