Home / 10,195.45-15,295.90-8,123.26

Finding the Fourth Proportional to 10,195.45, 15,295.90 and 8,123.26

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Solution

The fourth proportional to 10,195.45, 15,295.90 and 8,123.26 is: 12,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.45 : 15,295.90 = 8,123.26 : x
  2. Step 2: Convert to fraction form
    10,195.45/15,295.90 = 8,123.26/x
  3. Step 3: Cross multiply
    10,195.45x = 15,295.90 × 8,123.26
  4. Step 4: Simplify right side
    10,195.45x = 124,252,572.63
  5. Step 5: Solve for x
    x = 124,252,572.63/10,195.45
  6. Step 6: Final answer
    x = 12,187.07

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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.