Home / 8,214.85-11,337.06-5,230.81

Finding the Fourth Proportional to 8,214.85, 11,337.06 and 5,230.81

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Solution

The fourth proportional to 8,214.85, 11,337.06 and 5,230.81 is: 7,218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.85 : 11,337.06 = 5,230.81 : x
  2. Step 2: Convert to fraction form
    8,214.85/11,337.06 = 5,230.81/x
  3. Step 3: Cross multiply
    8,214.85x = 11,337.06 × 5,230.81
  4. Step 4: Simplify right side
    8,214.85x = 59,302,006.82
  5. Step 5: Solve for x
    x = 59,302,006.82/8,214.85
  6. Step 6: Final answer
    x = 7,218.88

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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.