Home / 7,212.40-10,818.60-5,997.40

Finding the Fourth Proportional to 7,212.40, 10,818.60 and 5,997.40

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Solution

The fourth proportional to 7,212.40, 10,818.60 and 5,997.40 is: 8,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.40 : 10,818.60 = 5,997.40 : x
  2. Step 2: Convert to fraction form
    7,212.40/10,818.60 = 5,997.40/x
  3. Step 3: Cross multiply
    7,212.40x = 10,818.60 × 5,997.40
  4. Step 4: Simplify right side
    7,212.40x = 64,883,471.64
  5. Step 5: Solve for x
    x = 64,883,471.64/7,212.40
  6. Step 6: Final answer
    x = 8,996.10

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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.