Home / 7,003.12-10,509-2,623.72

Finding the Fourth Proportional to 7,003.12, 10,509 and 2,623.72

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Solution

The fourth proportional to 7,003.12, 10,509 and 2,623.72 is: 3,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.12 : 10,509 = 2,623.72 : x
  2. Step 2: Convert to fraction form
    7,003.12/10,509 = 2,623.72/x
  3. Step 3: Cross multiply
    7,003.12x = 10,509 × 2,623.72
  4. Step 4: Simplify right side
    7,003.12x = 27,572,673.48
  5. Step 5: Solve for x
    x = 27,572,673.48/7,003.12
  6. Step 6: Final answer
    x = 3,937.20

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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.