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Finding the Fourth Proportional to 10,000.64, 15,000.76 and 2,604.94

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Solution

The fourth proportional to 10,000.64, 15,000.76 and 2,604.94 is: 3,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,000.64 : 15,000.76 = 2,604.94 : x
  2. Step 2: Convert to fraction form
    10,000.64/15,000.76 = 2,604.94/x
  3. Step 3: Cross multiply
    10,000.64x = 15,000.76 × 2,604.94
  4. Step 4: Simplify right side
    10,000.64x = 39,076,079.75
  5. Step 5: Solve for x
    x = 39,076,079.75/10,000.64
  6. Step 6: Final answer
    x = 3,907.36

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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.