Home / 13,309-19,962.96-3,948.64

Finding the Fourth Proportional to 13,309, 19,962.96 and 3,948.64

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Solution

The fourth proportional to 13,309, 19,962.96 and 3,948.64 is: 5,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309 : 19,962.96 = 3,948.64 : x
  2. Step 2: Convert to fraction form
    13,309/19,962.96 = 3,948.64/x
  3. Step 3: Cross multiply
    13,309x = 19,962.96 × 3,948.64
  4. Step 4: Simplify right side
    13,309x = 78,826,542.37
  5. Step 5: Solve for x
    x = 78,826,542.37/13,309
  6. Step 6: Final answer
    x = 5,922.80

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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.