Home / 10,865.20-14,994.30-6,149.36

Finding the Fourth Proportional to 10,865.20, 14,994.30 and 6,149.36

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Solution

The fourth proportional to 10,865.20, 14,994.30 and 6,149.36 is: 8,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.20 : 14,994.30 = 6,149.36 : x
  2. Step 2: Convert to fraction form
    10,865.20/14,994.30 = 6,149.36/x
  3. Step 3: Cross multiply
    10,865.20x = 14,994.30 × 6,149.36
  4. Step 4: Simplify right side
    10,865.20x = 92,205,348.65
  5. Step 5: Solve for x
    x = 92,205,348.65/10,865.20
  6. Step 6: Final answer
    x = 8,486.30

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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.