Home / 19,217.10-28,829.43-8,123.70

Finding the Fourth Proportional to 19,217.10, 28,829.43 and 8,123.70

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Solution

The fourth proportional to 19,217.10, 28,829.43 and 8,123.70 is: 12,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.10 : 28,829.43 = 8,123.70 : x
  2. Step 2: Convert to fraction form
    19,217.10/28,829.43 = 8,123.70/x
  3. Step 3: Cross multiply
    19,217.10x = 28,829.43 × 8,123.70
  4. Step 4: Simplify right side
    19,217.10x = 234,201,640.49
  5. Step 5: Solve for x
    x = 234,201,640.49/19,217.10
  6. Step 6: Final answer
    x = 12,187.15

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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.