Home / 8,106.50-12,155.45-2,558.40

Finding the Fourth Proportional to 8,106.50, 12,155.45 and 2,558.40

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Solution

The fourth proportional to 8,106.50, 12,155.45 and 2,558.40 is: 3,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.50 : 12,155.45 = 2,558.40 : x
  2. Step 2: Convert to fraction form
    8,106.50/12,155.45 = 2,558.40/x
  3. Step 3: Cross multiply
    8,106.50x = 12,155.45 × 2,558.40
  4. Step 4: Simplify right side
    8,106.50x = 31,098,490.49
  5. Step 5: Solve for x
    x = 31,098,490.49/8,106.50
  6. Step 6: Final answer
    x = 3,836.24

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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.