Home / 13,769.65-20,655.83-4,407.31

Finding the Fourth Proportional to 13,769.65, 20,655.83 and 4,407.31

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Solution

The fourth proportional to 13,769.65, 20,655.83 and 4,407.31 is: 6,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.65 : 20,655.83 = 4,407.31 : x
  2. Step 2: Convert to fraction form
    13,769.65/20,655.83 = 4,407.31/x
  3. Step 3: Cross multiply
    13,769.65x = 20,655.83 × 4,407.31
  4. Step 4: Simplify right side
    13,769.65x = 91,036,572.44
  5. Step 5: Solve for x
    x = 91,036,572.44/13,769.65
  6. Step 6: Final answer
    x = 6,611.39

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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.