Home / 12,983.20-19,458.60-9,516.40

Finding the Fourth Proportional to 12,983.20, 19,458.60 and 9,516.40

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Solution

The fourth proportional to 12,983.20, 19,458.60 and 9,516.40 is: 14,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.20 : 19,458.60 = 9,516.40 : x
  2. Step 2: Convert to fraction form
    12,983.20/19,458.60 = 9,516.40/x
  3. Step 3: Cross multiply
    12,983.20x = 19,458.60 × 9,516.40
  4. Step 4: Simplify right side
    12,983.20x = 185,175,821.04
  5. Step 5: Solve for x
    x = 185,175,821.04/12,983.20
  6. Step 6: Final answer
    x = 14,262.73

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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.