Home / 8,355.88-12,511.14-5,426.92

Finding the Fourth Proportional to 8,355.88, 12,511.14 and 5,426.92

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Solution

The fourth proportional to 8,355.88, 12,511.14 and 5,426.92 is: 8,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.88 : 12,511.14 = 5,426.92 : x
  2. Step 2: Convert to fraction form
    8,355.88/12,511.14 = 5,426.92/x
  3. Step 3: Cross multiply
    8,355.88x = 12,511.14 × 5,426.92
  4. Step 4: Simplify right side
    8,355.88x = 67,896,955.89
  5. Step 5: Solve for x
    x = 67,896,955.89/8,355.88
  6. Step 6: Final answer
    x = 8,125.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.