Home / 10,947.96-16,420.50-3,551.58

Finding the Fourth Proportional to 10,947.96, 16,420.50 and 3,551.58

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Solution

The fourth proportional to 10,947.96, 16,420.50 and 3,551.58 is: 5,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.96 : 16,420.50 = 3,551.58 : x
  2. Step 2: Convert to fraction form
    10,947.96/16,420.50 = 3,551.58/x
  3. Step 3: Cross multiply
    10,947.96x = 16,420.50 × 3,551.58
  4. Step 4: Simplify right side
    10,947.96x = 58,318,719.39
  5. Step 5: Solve for x
    x = 58,318,719.39/10,947.96
  6. Step 6: Final answer
    x = 5,326.90

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1.5x scale

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.