Home / 12,389.67-18,575.87-4,596.39

Finding the Fourth Proportional to 12,389.67, 18,575.87 and 4,596.39

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Solution

The fourth proportional to 12,389.67, 18,575.87 and 4,596.39 is: 6,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.67 : 18,575.87 = 4,596.39 : x
  2. Step 2: Convert to fraction form
    12,389.67/18,575.87 = 4,596.39/x
  3. Step 3: Cross multiply
    12,389.67x = 18,575.87 × 4,596.39
  4. Step 4: Simplify right side
    12,389.67x = 85,381,920.13
  5. Step 5: Solve for x
    x = 85,381,920.13/12,389.67
  6. Step 6: Final answer
    x = 6,891.38

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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.