Home / 12,411.23-18,617.45-4,091.21

Finding the Fourth Proportional to 12,411.23, 18,617.45 and 4,091.21

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Solution

The fourth proportional to 12,411.23, 18,617.45 and 4,091.21 is: 6,137.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.23 : 18,617.45 = 4,091.21 : x
  2. Step 2: Convert to fraction form
    12,411.23/18,617.45 = 4,091.21/x
  3. Step 3: Cross multiply
    12,411.23x = 18,617.45 × 4,091.21
  4. Step 4: Simplify right side
    12,411.23x = 76,167,853.89
  5. Step 5: Solve for x
    x = 76,167,853.89/12,411.23
  6. Step 6: Final answer
    x = 6,137.01

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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.