Home / 12,287.04-18,431.52-4,495.68

Finding the Fourth Proportional to 12,287.04, 18,431.52 and 4,495.68

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Solution

The fourth proportional to 12,287.04, 18,431.52 and 4,495.68 is: 6,743.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.04 : 18,431.52 = 4,495.68 : x
  2. Step 2: Convert to fraction form
    12,287.04/18,431.52 = 4,495.68/x
  3. Step 3: Cross multiply
    12,287.04x = 18,431.52 × 4,495.68
  4. Step 4: Simplify right side
    12,287.04x = 82,862,215.83
  5. Step 5: Solve for x
    x = 82,862,215.83/12,287.04
  6. Step 6: Final answer
    x = 6,743.87

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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.