Home / 14,143.15-21,204.60-7,118.16

Finding the Fourth Proportional to 14,143.15, 21,204.60 and 7,118.16

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Solution

The fourth proportional to 14,143.15, 21,204.60 and 7,118.16 is: 10,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.15 : 21,204.60 = 7,118.16 : x
  2. Step 2: Convert to fraction form
    14,143.15/21,204.60 = 7,118.16/x
  3. Step 3: Cross multiply
    14,143.15x = 21,204.60 × 7,118.16
  4. Step 4: Simplify right side
    14,143.15x = 150,937,735.54
  5. Step 5: Solve for x
    x = 150,937,735.54/14,143.15
  6. Step 6: Final answer
    x = 10,672.14

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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.