Home / 10,345.72-14,276.94-6,311.64

Finding the Fourth Proportional to 10,345.72, 14,276.94 and 6,311.64

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Solution

The fourth proportional to 10,345.72, 14,276.94 and 6,311.64 is: 8,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.72 : 14,276.94 = 6,311.64 : x
  2. Step 2: Convert to fraction form
    10,345.72/14,276.94 = 6,311.64/x
  3. Step 3: Cross multiply
    10,345.72x = 14,276.94 × 6,311.64
  4. Step 4: Simplify right side
    10,345.72x = 90,110,905.58
  5. Step 5: Solve for x
    x = 90,110,905.58/10,345.72
  6. Step 6: Final answer
    x = 8,709.97

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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.