Home / 18,659.40-25,749.32-10,161.38

Finding the Fourth Proportional to 18,659.40, 25,749.32 and 10,161.38

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Solution

The fourth proportional to 18,659.40, 25,749.32 and 10,161.38 is: 14,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.40 : 25,749.32 = 10,161.38 : x
  2. Step 2: Convert to fraction form
    18,659.40/25,749.32 = 10,161.38/x
  3. Step 3: Cross multiply
    18,659.40x = 25,749.32 × 10,161.38
  4. Step 4: Simplify right side
    18,659.40x = 261,648,445.71
  5. Step 5: Solve for x
    x = 261,648,445.71/18,659.40
  6. Step 6: Final answer
    x = 14,022.34

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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.