Home / 12,430.32-18,645.48-3,196.32

Finding the Fourth Proportional to 12,430.32, 18,645.48 and 3,196.32

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Solution

The fourth proportional to 12,430.32, 18,645.48 and 3,196.32 is: 4,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.32 : 18,645.48 = 3,196.32 : x
  2. Step 2: Convert to fraction form
    12,430.32/18,645.48 = 3,196.32/x
  3. Step 3: Cross multiply
    12,430.32x = 18,645.48 × 3,196.32
  4. Step 4: Simplify right side
    12,430.32x = 59,596,920.63
  5. Step 5: Solve for x
    x = 59,596,920.63/12,430.32
  6. Step 6: Final answer
    x = 4,794.48

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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.