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Finding the Fourth Proportional to 16,777.64, 25,165.02 and 7,890.88

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Solution

The fourth proportional to 16,777.64, 25,165.02 and 7,890.88 is: 11,835.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,777.64 : 25,165.02 = 7,890.88 : x
  2. Step 2: Convert to fraction form
    16,777.64/25,165.02 = 7,890.88/x
  3. Step 3: Cross multiply
    16,777.64x = 25,165.02 × 7,890.88
  4. Step 4: Simplify right side
    16,777.64x = 198,574,276.34
  5. Step 5: Solve for x
    x = 198,574,276.34/16,777.64
  6. Step 6: Final answer
    x = 11,835.65

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Similar ratio
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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.