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Finding the Fourth Proportional to 14,311.58, 19,749.02 and 7,937.91

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Solution

The fourth proportional to 14,311.58, 19,749.02 and 7,937.91 is: 10,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.58 : 19,749.02 = 7,937.91 : x
  2. Step 2: Convert to fraction form
    14,311.58/19,749.02 = 7,937.91/x
  3. Step 3: Cross multiply
    14,311.58x = 19,749.02 × 7,937.91
  4. Step 4: Simplify right side
    14,311.58x = 156,765,903.66
  5. Step 5: Solve for x
    x = 156,765,903.66/14,311.58
  6. Step 6: Final answer
    x = 10,953.78

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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.