Home / 10,427.52-15,639.60-3,856.80

Finding the Fourth Proportional to 10,427.52, 15,639.60 and 3,856.80

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Solution

The fourth proportional to 10,427.52, 15,639.60 and 3,856.80 is: 5,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.52 : 15,639.60 = 3,856.80 : x
  2. Step 2: Convert to fraction form
    10,427.52/15,639.60 = 3,856.80/x
  3. Step 3: Cross multiply
    10,427.52x = 15,639.60 × 3,856.80
  4. Step 4: Simplify right side
    10,427.52x = 60,318,809.28
  5. Step 5: Solve for x
    x = 60,318,809.28/10,427.52
  6. Step 6: Final answer
    x = 5,784.58

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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.