Home / 18,681.08-25,778.96-10,723.12

Finding the Fourth Proportional to 18,681.08, 25,778.96 and 10,723.12

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Solution

The fourth proportional to 18,681.08, 25,778.96 and 10,723.12 is: 14,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.08 : 25,778.96 = 10,723.12 : x
  2. Step 2: Convert to fraction form
    18,681.08/25,778.96 = 10,723.12/x
  3. Step 3: Cross multiply
    18,681.08x = 25,778.96 × 10,723.12
  4. Step 4: Simplify right side
    18,681.08x = 276,430,881.56
  5. Step 5: Solve for x
    x = 276,430,881.56/18,681.08
  6. Step 6: Final answer
    x = 14,797.37

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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.