Home / 12,609.32-18,908.50-4,287.10

Finding the Fourth Proportional to 12,609.32, 18,908.50 and 4,287.10

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Solution

The fourth proportional to 12,609.32, 18,908.50 and 4,287.10 is: 6,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.32 : 18,908.50 = 4,287.10 : x
  2. Step 2: Convert to fraction form
    12,609.32/18,908.50 = 4,287.10/x
  3. Step 3: Cross multiply
    12,609.32x = 18,908.50 × 4,287.10
  4. Step 4: Simplify right side
    12,609.32x = 81,062,630.35
  5. Step 5: Solve for x
    x = 81,062,630.35/12,609.32
  6. Step 6: Final answer
    x = 6,428.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.