Home / 13,787.28-19,027.56-8,483.92

Finding the Fourth Proportional to 13,787.28, 19,027.56 and 8,483.92

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Solution

The fourth proportional to 13,787.28, 19,027.56 and 8,483.92 is: 11,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.28 : 19,027.56 = 8,483.92 : x
  2. Step 2: Convert to fraction form
    13,787.28/19,027.56 = 8,483.92/x
  3. Step 3: Cross multiply
    13,787.28x = 19,027.56 × 8,483.92
  4. Step 4: Simplify right side
    13,787.28x = 161,428,296.84
  5. Step 5: Solve for x
    x = 161,428,296.84/13,787.28
  6. Step 6: Final answer
    x = 11,708.49

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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.