Home / 12,506.15-18,744.89-4,184.21

Finding the Fourth Proportional to 12,506.15, 18,744.89 and 4,184.21

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Solution

The fourth proportional to 12,506.15, 18,744.89 and 4,184.21 is: 6,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.15 : 18,744.89 = 4,184.21 : x
  2. Step 2: Convert to fraction form
    12,506.15/18,744.89 = 4,184.21/x
  3. Step 3: Cross multiply
    12,506.15x = 18,744.89 × 4,184.21
  4. Step 4: Simplify right side
    12,506.15x = 78,432,441.54
  5. Step 5: Solve for x
    x = 78,432,441.54/12,506.15
  6. Step 6: Final answer
    x = 6,271.51

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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.