Home / 12,880.38-19,330.30-9,426.54

Finding the Fourth Proportional to 12,880.38, 19,330.30 and 9,426.54

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Solution

The fourth proportional to 12,880.38, 19,330.30 and 9,426.54 is: 14,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.38 : 19,330.30 = 9,426.54 : x
  2. Step 2: Convert to fraction form
    12,880.38/19,330.30 = 9,426.54/x
  3. Step 3: Cross multiply
    12,880.38x = 19,330.30 × 9,426.54
  4. Step 4: Simplify right side
    12,880.38x = 182,217,846.16
  5. Step 5: Solve for x
    x = 182,217,846.16/12,880.38
  6. Step 6: Final answer
    x = 14,146.93

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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.