Home / 8,918.30-12,307.25-4,939.41

Finding the Fourth Proportional to 8,918.30, 12,307.25 and 4,939.41

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Solution

The fourth proportional to 8,918.30, 12,307.25 and 4,939.41 is: 6,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.30 : 12,307.25 = 4,939.41 : x
  2. Step 2: Convert to fraction form
    8,918.30/12,307.25 = 4,939.41/x
  3. Step 3: Cross multiply
    8,918.30x = 12,307.25 × 4,939.41
  4. Step 4: Simplify right side
    8,918.30x = 60,790,575.18
  5. Step 5: Solve for x
    x = 60,790,575.18/8,918.30
  6. Step 6: Final answer
    x = 6,816.38

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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.