Home / 12,488.16-18,725.94-4,165.23

Finding the Fourth Proportional to 12,488.16, 18,725.94 and 4,165.23

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Solution

The fourth proportional to 12,488.16, 18,725.94 and 4,165.23 is: 6,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.16 : 18,725.94 = 4,165.23 : x
  2. Step 2: Convert to fraction form
    12,488.16/18,725.94 = 4,165.23/x
  3. Step 3: Cross multiply
    12,488.16x = 18,725.94 × 4,165.23
  4. Step 4: Simplify right side
    12,488.16x = 77,997,847.07
  5. Step 5: Solve for x
    x = 77,997,847.07/12,488.16
  6. Step 6: Final answer
    x = 6,245.74

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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.