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Finding the Fourth Proportional to 10,666.76, 16,000.16 and 4,425.09

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Solution

The fourth proportional to 10,666.76, 16,000.16 and 4,425.09 is: 6,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.76 : 16,000.16 = 4,425.09 : x
  2. Step 2: Convert to fraction form
    10,666.76/16,000.16 = 4,425.09/x
  3. Step 3: Cross multiply
    10,666.76x = 16,000.16 × 4,425.09
  4. Step 4: Simplify right side
    10,666.76x = 70,802,125.89
  5. Step 5: Solve for x
    x = 70,802,125.89/10,666.76
  6. Step 6: Final answer
    x = 6,637.64

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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.