Home / 8,465.40-12,700.29-4,958.37

Finding the Fourth Proportional to 8,465.40, 12,700.29 and 4,958.37

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Solution

The fourth proportional to 8,465.40, 12,700.29 and 4,958.37 is: 7,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.40 : 12,700.29 = 4,958.37 : x
  2. Step 2: Convert to fraction form
    8,465.40/12,700.29 = 4,958.37/x
  3. Step 3: Cross multiply
    8,465.40x = 12,700.29 × 4,958.37
  4. Step 4: Simplify right side
    8,465.40x = 62,972,736.93
  5. Step 5: Solve for x
    x = 62,972,736.93/8,465.40
  6. Step 6: Final answer
    x = 7,438.84

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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.