Home / 18,782.12-25,921.06-10,398.62

Finding the Fourth Proportional to 18,782.12, 25,921.06 and 10,398.62

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Solution

The fourth proportional to 18,782.12, 25,921.06 and 10,398.62 is: 14,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.12 : 25,921.06 = 10,398.62 : x
  2. Step 2: Convert to fraction form
    18,782.12/25,921.06 = 10,398.62/x
  3. Step 3: Cross multiply
    18,782.12x = 25,921.06 × 10,398.62
  4. Step 4: Simplify right side
    18,782.12x = 269,543,097.34
  5. Step 5: Solve for x
    x = 269,543,097.34/18,782.12
  6. Step 6: Final answer
    x = 14,351.05

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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.