Home / 18,354.12-25,339.16-12,084.72

Finding the Fourth Proportional to 18,354.12, 25,339.16 and 12,084.72

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Solution

The fourth proportional to 18,354.12, 25,339.16 and 12,084.72 is: 16,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.12 : 25,339.16 = 12,084.72 : x
  2. Step 2: Convert to fraction form
    18,354.12/25,339.16 = 12,084.72/x
  3. Step 3: Cross multiply
    18,354.12x = 25,339.16 × 12,084.72
  4. Step 4: Simplify right side
    18,354.12x = 306,216,653.64
  5. Step 5: Solve for x
    x = 306,216,653.64/18,354.12
  6. Step 6: Final answer
    x = 16,683.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.