Home / 8,187.90-12,245.40-6,875.70

Finding the Fourth Proportional to 8,187.90, 12,245.40 and 6,875.70

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Solution

The fourth proportional to 8,187.90, 12,245.40 and 6,875.70 is: 10,282.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.90 : 12,245.40 = 6,875.70 : x
  2. Step 2: Convert to fraction form
    8,187.90/12,245.40 = 6,875.70/x
  3. Step 3: Cross multiply
    8,187.90x = 12,245.40 × 6,875.70
  4. Step 4: Simplify right side
    8,187.90x = 84,195,696.78
  5. Step 5: Solve for x
    x = 84,195,696.78/8,187.90
  6. Step 6: Final answer
    x = 10,282.94

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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.