Home / 12,488.09-18,732.74-4,168.17

Finding the Fourth Proportional to 12,488.09, 18,732.74 and 4,168.17

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Solution

The fourth proportional to 12,488.09, 18,732.74 and 4,168.17 is: 6,252.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.09 : 18,732.74 = 4,168.17 : x
  2. Step 2: Convert to fraction form
    12,488.09/18,732.74 = 4,168.17/x
  3. Step 3: Cross multiply
    12,488.09x = 18,732.74 × 4,168.17
  4. Step 4: Simplify right side
    12,488.09x = 78,081,224.04
  5. Step 5: Solve for x
    x = 78,081,224.04/12,488.09
  6. Step 6: Final answer
    x = 6,252.46

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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.