Home / 8,816.31-12,165.80-5,039.28

Finding the Fourth Proportional to 8,816.31, 12,165.80 and 5,039.28

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Solution

The fourth proportional to 8,816.31, 12,165.80 and 5,039.28 is: 6,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.31 : 12,165.80 = 5,039.28 : x
  2. Step 2: Convert to fraction form
    8,816.31/12,165.80 = 5,039.28/x
  3. Step 3: Cross multiply
    8,816.31x = 12,165.80 × 5,039.28
  4. Step 4: Simplify right side
    8,816.31x = 61,306,847.43
  5. Step 5: Solve for x
    x = 61,306,847.43/8,816.31
  6. Step 6: Final answer
    x = 6,953.80

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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.