Home / 8,400.24-12,587.40-3,465.72

Finding the Fourth Proportional to 8,400.24, 12,587.40 and 3,465.72

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Solution

The fourth proportional to 8,400.24, 12,587.40 and 3,465.72 is: 5,193.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.24 : 12,587.40 = 3,465.72 : x
  2. Step 2: Convert to fraction form
    8,400.24/12,587.40 = 3,465.72/x
  3. Step 3: Cross multiply
    8,400.24x = 12,587.40 × 3,465.72
  4. Step 4: Simplify right side
    8,400.24x = 43,624,403.93
  5. Step 5: Solve for x
    x = 43,624,403.93/8,400.24
  6. Step 6: Final answer
    x = 5,193.23

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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.