Home / 18,812.21-25,962.86-12,006.42

Finding the Fourth Proportional to 18,812.21, 25,962.86 and 12,006.42

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Solution

The fourth proportional to 18,812.21, 25,962.86 and 12,006.42 is: 16,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.21 : 25,962.86 = 12,006.42 : x
  2. Step 2: Convert to fraction form
    18,812.21/25,962.86 = 12,006.42/x
  3. Step 3: Cross multiply
    18,812.21x = 25,962.86 × 12,006.42
  4. Step 4: Simplify right side
    18,812.21x = 311,720,941.53
  5. Step 5: Solve for x
    x = 311,720,941.53/18,812.21
  6. Step 6: Final answer
    x = 16,570.14

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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.