Home / 18,455.04-25,460.24-12,083.20

Finding the Fourth Proportional to 18,455.04, 25,460.24 and 12,083.20

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Solution

The fourth proportional to 18,455.04, 25,460.24 and 12,083.20 is: 16,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.04 : 25,460.24 = 12,083.20 : x
  2. Step 2: Convert to fraction form
    18,455.04/25,460.24 = 12,083.20/x
  3. Step 3: Cross multiply
    18,455.04x = 25,460.24 × 12,083.20
  4. Step 4: Simplify right side
    18,455.04x = 307,641,171.97
  5. Step 5: Solve for x
    x = 307,641,171.97/18,455.04
  6. Step 6: Final answer
    x = 16,669.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.