Home / 18,356.24-25,330.80-10,398.30

Finding the Fourth Proportional to 18,356.24, 25,330.80 and 10,398.30

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Solution

The fourth proportional to 18,356.24, 25,330.80 and 10,398.30 is: 14,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.24 : 25,330.80 = 10,398.30 : x
  2. Step 2: Convert to fraction form
    18,356.24/25,330.80 = 10,398.30/x
  3. Step 3: Cross multiply
    18,356.24x = 25,330.80 × 10,398.30
  4. Step 4: Simplify right side
    18,356.24x = 263,397,257.64
  5. Step 5: Solve for x
    x = 263,397,257.64/18,356.24
  6. Step 6: Final answer
    x = 14,349.19

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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.