Home / 12,960.45-19,442.28-4,641.36

Finding the Fourth Proportional to 12,960.45, 19,442.28 and 4,641.36

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Solution

The fourth proportional to 12,960.45, 19,442.28 and 4,641.36 is: 6,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.45 : 19,442.28 = 4,641.36 : x
  2. Step 2: Convert to fraction form
    12,960.45/19,442.28 = 4,641.36/x
  3. Step 3: Cross multiply
    12,960.45x = 19,442.28 × 4,641.36
  4. Step 4: Simplify right side
    12,960.45x = 90,238,620.70
  5. Step 5: Solve for x
    x = 90,238,620.70/12,960.45
  6. Step 6: Final answer
    x = 6,962.61

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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.