Home / 8,320.64-12,483.04-2,477.12

Finding the Fourth Proportional to 8,320.64, 12,483.04 and 2,477.12

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Solution

The fourth proportional to 8,320.64, 12,483.04 and 2,477.12 is: 3,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.64 : 12,483.04 = 2,477.12 : x
  2. Step 2: Convert to fraction form
    8,320.64/12,483.04 = 2,477.12/x
  3. Step 3: Cross multiply
    8,320.64x = 12,483.04 × 2,477.12
  4. Step 4: Simplify right side
    8,320.64x = 30,921,988.04
  5. Step 5: Solve for x
    x = 30,921,988.04/8,320.64
  6. Step 6: Final answer
    x = 3,716.30

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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.