Home / 11,212.35-16,812.45-4,639.20

Finding the Fourth Proportional to 11,212.35, 16,812.45 and 4,639.20

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Solution

The fourth proportional to 11,212.35, 16,812.45 and 4,639.20 is: 6,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.35 : 16,812.45 = 4,639.20 : x
  2. Step 2: Convert to fraction form
    11,212.35/16,812.45 = 4,639.20/x
  3. Step 3: Cross multiply
    11,212.35x = 16,812.45 × 4,639.20
  4. Step 4: Simplify right side
    11,212.35x = 77,996,318.04
  5. Step 5: Solve for x
    x = 77,996,318.04/11,212.35
  6. Step 6: Final answer
    x = 6,956.29

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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.