Home / 18,725.60-25,817.96-12,000.16

Finding the Fourth Proportional to 18,725.60, 25,817.96 and 12,000.16

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Solution

The fourth proportional to 18,725.60, 25,817.96 and 12,000.16 is: 16,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.60 : 25,817.96 = 12,000.16 : x
  2. Step 2: Convert to fraction form
    18,725.60/25,817.96 = 12,000.16/x
  3. Step 3: Cross multiply
    18,725.60x = 25,817.96 × 12,000.16
  4. Step 4: Simplify right side
    18,725.60x = 309,819,650.87
  5. Step 5: Solve for x
    x = 309,819,650.87/18,725.60
  6. Step 6: Final answer
    x = 16,545.25

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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.