Home / 12,438.15-18,658.94-4,539.62

Finding the Fourth Proportional to 12,438.15, 18,658.94 and 4,539.62

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Solution

The fourth proportional to 12,438.15, 18,658.94 and 4,539.62 is: 6,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.15 : 18,658.94 = 4,539.62 : x
  2. Step 2: Convert to fraction form
    12,438.15/18,658.94 = 4,539.62/x
  3. Step 3: Cross multiply
    12,438.15x = 18,658.94 × 4,539.62
  4. Step 4: Simplify right side
    12,438.15x = 84,704,381.21
  5. Step 5: Solve for x
    x = 84,704,381.21/12,438.15
  6. Step 6: Final answer
    x = 6,810.05

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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.