Home / 12,381.40-18,574.44-4,589.92

Finding the Fourth Proportional to 12,381.40, 18,574.44 and 4,589.92

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Solution

The fourth proportional to 12,381.40, 18,574.44 and 4,589.92 is: 6,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.40 : 18,574.44 = 4,589.92 : x
  2. Step 2: Convert to fraction form
    12,381.40/18,574.44 = 4,589.92/x
  3. Step 3: Cross multiply
    12,381.40x = 18,574.44 × 4,589.92
  4. Step 4: Simplify right side
    12,381.40x = 85,255,193.64
  5. Step 5: Solve for x
    x = 85,255,193.64/12,381.40
  6. Step 6: Final answer
    x = 6,885.75

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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.