Home / 19,416.64-26,787.36-11,951.68

Finding the Fourth Proportional to 19,416.64, 26,787.36 and 11,951.68

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Solution

The fourth proportional to 19,416.64, 26,787.36 and 11,951.68 is: 16,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.64 : 26,787.36 = 11,951.68 : x
  2. Step 2: Convert to fraction form
    19,416.64/26,787.36 = 11,951.68/x
  3. Step 3: Cross multiply
    19,416.64x = 26,787.36 × 11,951.68
  4. Step 4: Simplify right side
    19,416.64x = 320,153,954.76
  5. Step 5: Solve for x
    x = 320,153,954.76/19,416.64
  6. Step 6: Final answer
    x = 16,488.64

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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.