Home / 8,559.20-11,816.88-6,762.08

Finding the Fourth Proportional to 8,559.20, 11,816.88 and 6,762.08

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Solution

The fourth proportional to 8,559.20, 11,816.88 and 6,762.08 is: 9,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.20 : 11,816.88 = 6,762.08 : x
  2. Step 2: Convert to fraction form
    8,559.20/11,816.88 = 6,762.08/x
  3. Step 3: Cross multiply
    8,559.20x = 11,816.88 × 6,762.08
  4. Step 4: Simplify right side
    8,559.20x = 79,906,687.91
  5. Step 5: Solve for x
    x = 79,906,687.91/8,559.20
  6. Step 6: Final answer
    x = 9,335.77

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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.