Home / 14,711.37-20,305.67-8,424.69

Finding the Fourth Proportional to 14,711.37, 20,305.67 and 8,424.69

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Solution

The fourth proportional to 14,711.37, 20,305.67 and 8,424.69 is: 11,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.37 : 20,305.67 = 8,424.69 : x
  2. Step 2: Convert to fraction form
    14,711.37/20,305.67 = 8,424.69/x
  3. Step 3: Cross multiply
    14,711.37x = 20,305.67 × 8,424.69
  4. Step 4: Simplify right side
    14,711.37x = 171,068,932.87
  5. Step 5: Solve for x
    x = 171,068,932.87/14,711.37
  6. Step 6: Final answer
    x = 11,628.35

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Half scale
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Double scale
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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.