Home / 19,876.60-27,418.32-12,411.64

Finding the Fourth Proportional to 19,876.60, 27,418.32 and 12,411.64

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Solution

The fourth proportional to 19,876.60, 27,418.32 and 12,411.64 is: 17,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.60 : 27,418.32 = 12,411.64 : x
  2. Step 2: Convert to fraction form
    19,876.60/27,418.32 = 12,411.64/x
  3. Step 3: Cross multiply
    19,876.60x = 27,418.32 × 12,411.64
  4. Step 4: Simplify right side
    19,876.60x = 340,306,317.24
  5. Step 5: Solve for x
    x = 340,306,317.24/19,876.60
  6. Step 6: Final answer
    x = 17,120.95

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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.