Home / 12,422.16-18,636.35-4,102.65

Finding the Fourth Proportional to 12,422.16, 18,636.35 and 4,102.65

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Solution

The fourth proportional to 12,422.16, 18,636.35 and 4,102.65 is: 6,155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.16 : 18,636.35 = 4,102.65 : x
  2. Step 2: Convert to fraction form
    12,422.16/18,636.35 = 4,102.65/x
  3. Step 3: Cross multiply
    12,422.16x = 18,636.35 × 4,102.65
  4. Step 4: Simplify right side
    12,422.16x = 76,458,400.81
  5. Step 5: Solve for x
    x = 76,458,400.81/12,422.16
  6. Step 6: Final answer
    x = 6,155.00

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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.