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Finding the Fourth Proportional to 10,008.88, 15,008.21 and 3,342.98

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Solution

The fourth proportional to 10,008.88, 15,008.21 and 3,342.98 is: 5,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.88 : 15,008.21 = 3,342.98 : x
  2. Step 2: Convert to fraction form
    10,008.88/15,008.21 = 3,342.98/x
  3. Step 3: Cross multiply
    10,008.88x = 15,008.21 × 3,342.98
  4. Step 4: Simplify right side
    10,008.88x = 50,172,094.79
  5. Step 5: Solve for x
    x = 50,172,094.79/10,008.88
  6. Step 6: Final answer
    x = 5,012.76

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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.