Home / 18,220.64-25,145.76-10,263.56

Finding the Fourth Proportional to 18,220.64, 25,145.76 and 10,263.56

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Solution

The fourth proportional to 18,220.64, 25,145.76 and 10,263.56 is: 14,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.64 : 25,145.76 = 10,263.56 : x
  2. Step 2: Convert to fraction form
    18,220.64/25,145.76 = 10,263.56/x
  3. Step 3: Cross multiply
    18,220.64x = 25,145.76 × 10,263.56
  4. Step 4: Simplify right side
    18,220.64x = 258,085,016.51
  5. Step 5: Solve for x
    x = 258,085,016.51/18,220.64
  6. Step 6: Final answer
    x = 14,164.43

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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.