Home / 13,948.48-20,914.62-5,621.68

Finding the Fourth Proportional to 13,948.48, 20,914.62 and 5,621.68

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Solution

The fourth proportional to 13,948.48, 20,914.62 and 5,621.68 is: 8,429.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.48 : 20,914.62 = 5,621.68 : x
  2. Step 2: Convert to fraction form
    13,948.48/20,914.62 = 5,621.68/x
  3. Step 3: Cross multiply
    13,948.48x = 20,914.62 × 5,621.68
  4. Step 4: Simplify right side
    13,948.48x = 117,575,300.96
  5. Step 5: Solve for x
    x = 117,575,300.96/13,948.48
  6. Step 6: Final answer
    x = 8,429.26

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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.