Home / 10,865.34-16,299.72-4,291.56

Finding the Fourth Proportional to 10,865.34, 16,299.72 and 4,291.56

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Solution

The fourth proportional to 10,865.34, 16,299.72 and 4,291.56 is: 6,438.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.34 : 16,299.72 = 4,291.56 : x
  2. Step 2: Convert to fraction form
    10,865.34/16,299.72 = 4,291.56/x
  3. Step 3: Cross multiply
    10,865.34x = 16,299.72 × 4,291.56
  4. Step 4: Simplify right side
    10,865.34x = 69,951,226.36
  5. Step 5: Solve for x
    x = 69,951,226.36/10,865.34
  6. Step 6: Final answer
    x = 6,438.02

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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.