Home / 13,231.13-18,259.53-7,924.93

Finding the Fourth Proportional to 13,231.13, 18,259.53 and 7,924.93

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Solution

The fourth proportional to 13,231.13, 18,259.53 and 7,924.93 is: 10,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.13 : 18,259.53 = 7,924.93 : x
  2. Step 2: Convert to fraction form
    13,231.13/18,259.53 = 7,924.93/x
  3. Step 3: Cross multiply
    13,231.13x = 18,259.53 × 7,924.93
  4. Step 4: Simplify right side
    13,231.13x = 144,705,497.08
  5. Step 5: Solve for x
    x = 144,705,497.08/13,231.13
  6. Step 6: Final answer
    x = 10,936.75

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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.