Home / 15,865.65-23,796.68-4,179.78

Finding the Fourth Proportional to 15,865.65, 23,796.68 and 4,179.78

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Solution

The fourth proportional to 15,865.65, 23,796.68 and 4,179.78 is: 6,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.65 : 23,796.68 = 4,179.78 : x
  2. Step 2: Convert to fraction form
    15,865.65/23,796.68 = 4,179.78/x
  3. Step 3: Cross multiply
    15,865.65x = 23,796.68 × 4,179.78
  4. Step 4: Simplify right side
    15,865.65x = 99,464,866.23
  5. Step 5: Solve for x
    x = 99,464,866.23/15,865.65
  6. Step 6: Final answer
    x = 6,269.20

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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.