Home / 13,723.08-18,930.96-9,005.64

Finding the Fourth Proportional to 13,723.08, 18,930.96 and 9,005.64

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Solution

The fourth proportional to 13,723.08, 18,930.96 and 9,005.64 is: 12,423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.08 : 18,930.96 = 9,005.64 : x
  2. Step 2: Convert to fraction form
    13,723.08/18,930.96 = 9,005.64/x
  3. Step 3: Cross multiply
    13,723.08x = 18,930.96 × 9,005.64
  4. Step 4: Simplify right side
    13,723.08x = 170,485,410.61
  5. Step 5: Solve for x
    x = 170,485,410.61/13,723.08
  6. Step 6: Final answer
    x = 12,423.26

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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.