Home / 18,645.40-25,730.62-10,261.90

Finding the Fourth Proportional to 18,645.40, 25,730.62 and 10,261.90

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Solution

The fourth proportional to 18,645.40, 25,730.62 and 10,261.90 is: 14,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.40 : 25,730.62 = 10,261.90 : x
  2. Step 2: Convert to fraction form
    18,645.40/25,730.62 = 10,261.90/x
  3. Step 3: Cross multiply
    18,645.40x = 25,730.62 × 10,261.90
  4. Step 4: Simplify right side
    18,645.40x = 264,045,049.38
  5. Step 5: Solve for x
    x = 264,045,049.38/18,645.40
  6. Step 6: Final answer
    x = 14,161.40

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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.