Home / 14,168.75-21,236.60-12,528.50

Finding the Fourth Proportional to 14,168.75, 21,236.60 and 12,528.50

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Solution

The fourth proportional to 14,168.75, 21,236.60 and 12,528.50 is: 18,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.75 : 21,236.60 = 12,528.50 : x
  2. Step 2: Convert to fraction form
    14,168.75/21,236.60 = 12,528.50/x
  3. Step 3: Cross multiply
    14,168.75x = 21,236.60 × 12,528.50
  4. Step 4: Simplify right side
    14,168.75x = 266,062,668.24
  5. Step 5: Solve for x
    x = 266,062,668.24/14,168.75
  6. Step 6: Final answer
    x = 18,778.14

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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.