Home / 8,429.05-12,643.01-2,585.60

Finding the Fourth Proportional to 8,429.05, 12,643.01 and 2,585.60

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Solution

The fourth proportional to 8,429.05, 12,643.01 and 2,585.60 is: 3,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.05 : 12,643.01 = 2,585.60 : x
  2. Step 2: Convert to fraction form
    8,429.05/12,643.01 = 2,585.60/x
  3. Step 3: Cross multiply
    8,429.05x = 12,643.01 × 2,585.60
  4. Step 4: Simplify right side
    8,429.05x = 32,689,785.34
  5. Step 5: Solve for x
    x = 32,689,785.34/8,429.05
  6. Step 6: Final answer
    x = 3,878.23

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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.