Home / 13,713.08-18,923.97-7,746.68

Finding the Fourth Proportional to 13,713.08, 18,923.97 and 7,746.68

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Solution

The fourth proportional to 13,713.08, 18,923.97 and 7,746.68 is: 10,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.08 : 18,923.97 = 7,746.68 : x
  2. Step 2: Convert to fraction form
    13,713.08/18,923.97 = 7,746.68/x
  3. Step 3: Cross multiply
    13,713.08x = 18,923.97 × 7,746.68
  4. Step 4: Simplify right side
    13,713.08x = 146,597,939.92
  5. Step 5: Solve for x
    x = 146,597,939.92/13,713.08
  6. Step 6: Final answer
    x = 10,690.37

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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.