Home / 12,429.14-18,639.27-4,107.62

Finding the Fourth Proportional to 12,429.14, 18,639.27 and 4,107.62

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Solution

The fourth proportional to 12,429.14, 18,639.27 and 4,107.62 is: 6,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.14 : 18,639.27 = 4,107.62 : x
  2. Step 2: Convert to fraction form
    12,429.14/18,639.27 = 4,107.62/x
  3. Step 3: Cross multiply
    12,429.14x = 18,639.27 × 4,107.62
  4. Step 4: Simplify right side
    12,429.14x = 76,563,038.24
  5. Step 5: Solve for x
    x = 76,563,038.24/12,429.14
  6. Step 6: Final answer
    x = 6,159.96

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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.