Home / 8,124.77-11,212.84-6,459.92

Finding the Fourth Proportional to 8,124.77, 11,212.84 and 6,459.92

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Solution

The fourth proportional to 8,124.77, 11,212.84 and 6,459.92 is: 8,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.77 : 11,212.84 = 6,459.92 : x
  2. Step 2: Convert to fraction form
    8,124.77/11,212.84 = 6,459.92/x
  3. Step 3: Cross multiply
    8,124.77x = 11,212.84 × 6,459.92
  4. Step 4: Simplify right side
    8,124.77x = 72,434,049.37
  5. Step 5: Solve for x
    x = 72,434,049.37/8,124.77
  6. Step 6: Final answer
    x = 8,915.21

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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.