Home / 10,921.28-16,372.08-4,346

Finding the Fourth Proportional to 10,921.28, 16,372.08 and 4,346

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Solution

The fourth proportional to 10,921.28, 16,372.08 and 4,346 is: 6,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.28 : 16,372.08 = 4,346 : x
  2. Step 2: Convert to fraction form
    10,921.28/16,372.08 = 4,346/x
  3. Step 3: Cross multiply
    10,921.28x = 16,372.08 × 4,346
  4. Step 4: Simplify right side
    10,921.28x = 71,153,059.68
  5. Step 5: Solve for x
    x = 71,153,059.68/10,921.28
  6. Step 6: Final answer
    x = 6,515.08

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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.