Home / 10,945.28-16,419.84-4,787.84

Finding the Fourth Proportional to 10,945.28, 16,419.84 and 4,787.84

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Solution

The fourth proportional to 10,945.28, 16,419.84 and 4,787.84 is: 7,182.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.28 : 16,419.84 = 4,787.84 : x
  2. Step 2: Convert to fraction form
    10,945.28/16,419.84 = 4,787.84/x
  3. Step 3: Cross multiply
    10,945.28x = 16,419.84 × 4,787.84
  4. Step 4: Simplify right side
    10,945.28x = 78,615,566.75
  5. Step 5: Solve for x
    x = 78,615,566.75/10,945.28
  6. Step 6: Final answer
    x = 7,182.60

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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.