Home / 18,705.38-25,813.28-10,207.31

Finding the Fourth Proportional to 18,705.38, 25,813.28 and 10,207.31

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Solution

The fourth proportional to 18,705.38, 25,813.28 and 10,207.31 is: 14,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.38 : 25,813.28 = 10,207.31 : x
  2. Step 2: Convert to fraction form
    18,705.38/25,813.28 = 10,207.31/x
  3. Step 3: Cross multiply
    18,705.38x = 25,813.28 × 10,207.31
  4. Step 4: Simplify right side
    18,705.38x = 263,484,100.04
  5. Step 5: Solve for x
    x = 263,484,100.04/18,705.38
  6. Step 6: Final answer
    x = 14,086.01

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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.