Home / 12,429.16-18,641.04-4,107.21

Finding the Fourth Proportional to 12,429.16, 18,641.04 and 4,107.21

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Solution

The fourth proportional to 12,429.16, 18,641.04 and 4,107.21 is: 6,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.16 : 18,641.04 = 4,107.21 : x
  2. Step 2: Convert to fraction form
    12,429.16/18,641.04 = 4,107.21/x
  3. Step 3: Cross multiply
    12,429.16x = 18,641.04 × 4,107.21
  4. Step 4: Simplify right side
    12,429.16x = 76,562,665.90
  5. Step 5: Solve for x
    x = 76,562,665.90/12,429.16
  6. Step 6: Final answer
    x = 6,159.92

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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.