Home / 8,405.75-11,599.86-4,628.85

Finding the Fourth Proportional to 8,405.75, 11,599.86 and 4,628.85

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Solution

The fourth proportional to 8,405.75, 11,599.86 and 4,628.85 is: 6,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.75 : 11,599.86 = 4,628.85 : x
  2. Step 2: Convert to fraction form
    8,405.75/11,599.86 = 4,628.85/x
  3. Step 3: Cross multiply
    8,405.75x = 11,599.86 × 4,628.85
  4. Step 4: Simplify right side
    8,405.75x = 53,693,959.78
  5. Step 5: Solve for x
    x = 53,693,959.78/8,405.75
  6. Step 6: Final answer
    x = 6,387.77

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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.