Home / 12,435.55-18,635.24-7,979.23

Finding the Fourth Proportional to 12,435.55, 18,635.24 and 7,979.23

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Solution

The fourth proportional to 12,435.55, 18,635.24 and 7,979.23 is: 11,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.55 : 18,635.24 = 7,979.23 : x
  2. Step 2: Convert to fraction form
    12,435.55/18,635.24 = 7,979.23/x
  3. Step 3: Cross multiply
    12,435.55x = 18,635.24 × 7,979.23
  4. Step 4: Simplify right side
    12,435.55x = 148,694,866.07
  5. Step 5: Solve for x
    x = 148,694,866.07/12,435.55
  6. Step 6: Final answer
    x = 11,957.24

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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.