Home / 8,438.09-11,645.98-4,903.34

Finding the Fourth Proportional to 8,438.09, 11,645.98 and 4,903.34

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Solution

The fourth proportional to 8,438.09, 11,645.98 and 4,903.34 is: 6,767.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.09 : 11,645.98 = 4,903.34 : x
  2. Step 2: Convert to fraction form
    8,438.09/11,645.98 = 4,903.34/x
  3. Step 3: Cross multiply
    8,438.09x = 11,645.98 × 4,903.34
  4. Step 4: Simplify right side
    8,438.09x = 57,104,199.57
  5. Step 5: Solve for x
    x = 57,104,199.57/8,438.09
  6. Step 6: Final answer
    x = 6,767.44

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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.