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Finding the Fourth Proportional to 10,000.76, 15,002.76 and 3,075.26

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Solution

The fourth proportional to 10,000.76, 15,002.76 and 3,075.26 is: 4,613.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,000.76 : 15,002.76 = 3,075.26 : x
  2. Step 2: Convert to fraction form
    10,000.76/15,002.76 = 3,075.26/x
  3. Step 3: Cross multiply
    10,000.76x = 15,002.76 × 3,075.26
  4. Step 4: Simplify right side
    10,000.76x = 46,137,387.72
  5. Step 5: Solve for x
    x = 46,137,387.72/10,000.76
  6. Step 6: Final answer
    x = 4,613.39

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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.