Home / 12,429.48-18,662.58-8,295.24

Finding the Fourth Proportional to 12,429.48, 18,662.58 and 8,295.24

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Solution

The fourth proportional to 12,429.48, 18,662.58 and 8,295.24 is: 12,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.48 : 18,662.58 = 8,295.24 : x
  2. Step 2: Convert to fraction form
    12,429.48/18,662.58 = 8,295.24/x
  3. Step 3: Cross multiply
    12,429.48x = 18,662.58 × 8,295.24
  4. Step 4: Simplify right side
    12,429.48x = 154,810,580.12
  5. Step 5: Solve for x
    x = 154,810,580.12/12,429.48
  6. Step 6: Final answer
    x = 12,455.11

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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.