Home / 13,778.48-20,677.53-5,460.30

Finding the Fourth Proportional to 13,778.48, 20,677.53 and 5,460.30

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Solution

The fourth proportional to 13,778.48, 20,677.53 and 5,460.30 is: 8,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.48 : 20,677.53 = 5,460.30 : x
  2. Step 2: Convert to fraction form
    13,778.48/20,677.53 = 5,460.30/x
  3. Step 3: Cross multiply
    13,778.48x = 20,677.53 × 5,460.30
  4. Step 4: Simplify right side
    13,778.48x = 112,905,568.16
  5. Step 5: Solve for x
    x = 112,905,568.16/13,778.48
  6. Step 6: Final answer
    x = 8,194.34

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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.