Home / 12,963.38-19,425.26-8,730.98

Finding the Fourth Proportional to 12,963.38, 19,425.26 and 8,730.98

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Solution

The fourth proportional to 12,963.38, 19,425.26 and 8,730.98 is: 13,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.38 : 19,425.26 = 8,730.98 : x
  2. Step 2: Convert to fraction form
    12,963.38/19,425.26 = 8,730.98/x
  3. Step 3: Cross multiply
    12,963.38x = 19,425.26 × 8,730.98
  4. Step 4: Simplify right side
    12,963.38x = 169,601,626.95
  5. Step 5: Solve for x
    x = 169,601,626.95/12,963.38
  6. Step 6: Final answer
    x = 13,083.13

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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.