Home / 13,150.70-19,725.64-4,385.69

Finding the Fourth Proportional to 13,150.70, 19,725.64 and 4,385.69

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Solution

The fourth proportional to 13,150.70, 19,725.64 and 4,385.69 is: 6,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.70 : 19,725.64 = 4,385.69 : x
  2. Step 2: Convert to fraction form
    13,150.70/19,725.64 = 4,385.69/x
  3. Step 3: Cross multiply
    13,150.70x = 19,725.64 × 4,385.69
  4. Step 4: Simplify right side
    13,150.70x = 86,510,432.50
  5. Step 5: Solve for x
    x = 86,510,432.50/13,150.70
  6. Step 6: Final answer
    x = 6,578.39

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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.