Home / 13,149.18-19,725.12-4,384.62

Finding the Fourth Proportional to 13,149.18, 19,725.12 and 4,384.62

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Solution

The fourth proportional to 13,149.18, 19,725.12 and 4,384.62 is: 6,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.18 : 19,725.12 = 4,384.62 : x
  2. Step 2: Convert to fraction form
    13,149.18/19,725.12 = 4,384.62/x
  3. Step 3: Cross multiply
    13,149.18x = 19,725.12 × 4,384.62
  4. Step 4: Simplify right side
    13,149.18x = 86,487,155.65
  5. Step 5: Solve for x
    x = 86,487,155.65/13,149.18
  6. Step 6: Final answer
    x = 6,577.38

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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.