Home / 8,345.46-12,515.28-2,797.62

Finding the Fourth Proportional to 8,345.46, 12,515.28 and 2,797.62

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Solution

The fourth proportional to 8,345.46, 12,515.28 and 2,797.62 is: 4,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.46 : 12,515.28 = 2,797.62 : x
  2. Step 2: Convert to fraction form
    8,345.46/12,515.28 = 2,797.62/x
  3. Step 3: Cross multiply
    8,345.46x = 12,515.28 × 2,797.62
  4. Step 4: Simplify right side
    8,345.46x = 35,012,997.63
  5. Step 5: Solve for x
    x = 35,012,997.63/8,345.46
  6. Step 6: Final answer
    x = 4,195.45

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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.