Home / 10,858.28-14,976.50-8,311.76

Finding the Fourth Proportional to 10,858.28, 14,976.50 and 8,311.76

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Solution

The fourth proportional to 10,858.28, 14,976.50 and 8,311.76 is: 11,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.28 : 14,976.50 = 8,311.76 : x
  2. Step 2: Convert to fraction form
    10,858.28/14,976.50 = 8,311.76/x
  3. Step 3: Cross multiply
    10,858.28x = 14,976.50 × 8,311.76
  4. Step 4: Simplify right side
    10,858.28x = 124,481,073.64
  5. Step 5: Solve for x
    x = 124,481,073.64/10,858.28
  6. Step 6: Final answer
    x = 11,464.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.