Home / 8,385.53-12,584.06-3,455.17

Finding the Fourth Proportional to 8,385.53, 12,584.06 and 3,455.17

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Solution

The fourth proportional to 8,385.53, 12,584.06 and 3,455.17 is: 5,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.53 : 12,584.06 = 3,455.17 : x
  2. Step 2: Convert to fraction form
    8,385.53/12,584.06 = 3,455.17/x
  3. Step 3: Cross multiply
    8,385.53x = 12,584.06 × 3,455.17
  4. Step 4: Simplify right side
    8,385.53x = 43,480,030.81
  5. Step 5: Solve for x
    x = 43,480,030.81/8,385.53
  6. Step 6: Final answer
    x = 5,185.13

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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.