Home / 8,438.60-11,645.51-4,662.23

Finding the Fourth Proportional to 8,438.60, 11,645.51 and 4,662.23

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Solution

The fourth proportional to 8,438.60, 11,645.51 and 4,662.23 is: 6,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.60 : 11,645.51 = 4,662.23 : x
  2. Step 2: Convert to fraction form
    8,438.60/11,645.51 = 4,662.23/x
  3. Step 3: Cross multiply
    8,438.60x = 11,645.51 × 4,662.23
  4. Step 4: Simplify right side
    8,438.60x = 54,293,964.55
  5. Step 5: Solve for x
    x = 54,293,964.55/8,438.60
  6. Step 6: Final answer
    x = 6,434.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.