Home / 14,778.25-20,396.61-8,810.30

Finding the Fourth Proportional to 14,778.25, 20,396.61 and 8,810.30

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Solution

The fourth proportional to 14,778.25, 20,396.61 and 8,810.30 is: 12,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.25 : 20,396.61 = 8,810.30 : x
  2. Step 2: Convert to fraction form
    14,778.25/20,396.61 = 8,810.30/x
  3. Step 3: Cross multiply
    14,778.25x = 20,396.61 × 8,810.30
  4. Step 4: Simplify right side
    14,778.25x = 179,700,304.07
  5. Step 5: Solve for x
    x = 179,700,304.07/14,778.25
  6. Step 6: Final answer
    x = 12,159.78

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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.