Home / 14,010.60-21,015.90-5,243.70

Finding the Fourth Proportional to 14,010.60, 21,015.90 and 5,243.70

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Solution

The fourth proportional to 14,010.60, 21,015.90 and 5,243.70 is: 7,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,010.60 : 21,015.90 = 5,243.70 : x
  2. Step 2: Convert to fraction form
    14,010.60/21,015.90 = 5,243.70/x
  3. Step 3: Cross multiply
    14,010.60x = 21,015.90 × 5,243.70
  4. Step 4: Simplify right side
    14,010.60x = 110,201,074.83
  5. Step 5: Solve for x
    x = 110,201,074.83/14,010.60
  6. Step 6: Final answer
    x = 7,865.55

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Similar ratio
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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.