Home / 14,280.70-21,445.58-8,766.42

Finding the Fourth Proportional to 14,280.70, 21,445.58 and 8,766.42

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Solution

The fourth proportional to 14,280.70, 21,445.58 and 8,766.42 is: 13,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.70 : 21,445.58 = 8,766.42 : x
  2. Step 2: Convert to fraction form
    14,280.70/21,445.58 = 8,766.42/x
  3. Step 3: Cross multiply
    14,280.70x = 21,445.58 × 8,766.42
  4. Step 4: Simplify right side
    14,280.70x = 188,000,961.42
  5. Step 5: Solve for x
    x = 188,000,961.42/14,280.70
  6. Step 6: Final answer
    x = 13,164.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.