Home / 8,124.76-12,185.34-2,281.24

Finding the Fourth Proportional to 8,124.76, 12,185.34 and 2,281.24

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Solution

The fourth proportional to 8,124.76, 12,185.34 and 2,281.24 is: 3,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.76 : 12,185.34 = 2,281.24 : x
  2. Step 2: Convert to fraction form
    8,124.76/12,185.34 = 2,281.24/x
  3. Step 3: Cross multiply
    8,124.76x = 12,185.34 × 2,281.24
  4. Step 4: Simplify right side
    8,124.76x = 27,797,685.02
  5. Step 5: Solve for x
    x = 27,797,685.02/8,124.76
  6. Step 6: Final answer
    x = 3,421.35

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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.