Home / 13,776.48-20,636.04-11,430.96

Finding the Fourth Proportional to 13,776.48, 20,636.04 and 11,430.96

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Solution

The fourth proportional to 13,776.48, 20,636.04 and 11,430.96 is: 17,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.48 : 20,636.04 = 11,430.96 : x
  2. Step 2: Convert to fraction form
    13,776.48/20,636.04 = 11,430.96/x
  3. Step 3: Cross multiply
    13,776.48x = 20,636.04 × 11,430.96
  4. Step 4: Simplify right side
    13,776.48x = 235,889,747.80
  5. Step 5: Solve for x
    x = 235,889,747.80/13,776.48
  6. Step 6: Final answer
    x = 17,122.64

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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.