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Finding the Fourth Proportional to 7,002.45, 10,509.14 and 2,621.16

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Solution

The fourth proportional to 7,002.45, 10,509.14 and 2,621.16 is: 3,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.45 : 10,509.14 = 2,621.16 : x
  2. Step 2: Convert to fraction form
    7,002.45/10,509.14 = 2,621.16/x
  3. Step 3: Cross multiply
    7,002.45x = 10,509.14 × 2,621.16
  4. Step 4: Simplify right side
    7,002.45x = 27,546,143.96
  5. Step 5: Solve for x
    x = 27,546,143.96/7,002.45
  6. Step 6: Final answer
    x = 3,933.79

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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.