Home / 14,766.60-20,379.96-8,478.84

Finding the Fourth Proportional to 14,766.60, 20,379.96 and 8,478.84

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Solution

The fourth proportional to 14,766.60, 20,379.96 and 8,478.84 is: 11,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,766.60 : 20,379.96 = 8,478.84 : x
  2. Step 2: Convert to fraction form
    14,766.60/20,379.96 = 8,478.84/x
  3. Step 3: Cross multiply
    14,766.60x = 20,379.96 × 8,478.84
  4. Step 4: Simplify right side
    14,766.60x = 172,798,420.05
  5. Step 5: Solve for x
    x = 172,798,420.05/14,766.60
  6. Step 6: Final answer
    x = 11,701.98

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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.