Home / 12,326.53-18,488.58-6,778.03

Finding the Fourth Proportional to 12,326.53, 18,488.58 and 6,778.03

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Solution

The fourth proportional to 12,326.53, 18,488.58 and 6,778.03 is: 10,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.53 : 18,488.58 = 6,778.03 : x
  2. Step 2: Convert to fraction form
    12,326.53/18,488.58 = 6,778.03/x
  3. Step 3: Cross multiply
    12,326.53x = 18,488.58 × 6,778.03
  4. Step 4: Simplify right side
    12,326.53x = 125,316,149.90
  5. Step 5: Solve for x
    x = 125,316,149.90/12,326.53
  6. Step 6: Final answer
    x = 10,166.38

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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.