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Finding the Fourth Proportional to 7,994.48, 12,000.24 and 7,075.88

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Solution

The fourth proportional to 7,994.48, 12,000.24 and 7,075.88 is: 10,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.48 : 12,000.24 = 7,075.88 : x
  2. Step 2: Convert to fraction form
    7,994.48/12,000.24 = 7,075.88/x
  3. Step 3: Cross multiply
    7,994.48x = 12,000.24 × 7,075.88
  4. Step 4: Simplify right side
    7,994.48x = 84,912,258.21
  5. Step 5: Solve for x
    x = 84,912,258.21/7,994.48
  6. Step 6: Final answer
    x = 10,621.36

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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.