Home / 10,856.40-16,284.60-2,648.40

Finding the Fourth Proportional to 10,856.40, 16,284.60 and 2,648.40

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Solution

The fourth proportional to 10,856.40, 16,284.60 and 2,648.40 is: 3,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,856.40 : 16,284.60 = 2,648.40 : x
  2. Step 2: Convert to fraction form
    10,856.40/16,284.60 = 2,648.40/x
  3. Step 3: Cross multiply
    10,856.40x = 16,284.60 × 2,648.40
  4. Step 4: Simplify right side
    10,856.40x = 43,128,134.64
  5. Step 5: Solve for x
    x = 43,128,134.64/10,856.40
  6. Step 6: Final answer
    x = 3,972.60

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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.