Home / 13,339.03-20,008.56-3,478.30

Finding the Fourth Proportional to 13,339.03, 20,008.56 and 3,478.30

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Solution

The fourth proportional to 13,339.03, 20,008.56 and 3,478.30 is: 5,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.03 : 20,008.56 = 3,478.30 : x
  2. Step 2: Convert to fraction form
    13,339.03/20,008.56 = 3,478.30/x
  3. Step 3: Cross multiply
    13,339.03x = 20,008.56 × 3,478.30
  4. Step 4: Simplify right side
    13,339.03x = 69,595,774.25
  5. Step 5: Solve for x
    x = 69,595,774.25/13,339.03
  6. Step 6: Final answer
    x = 5,217.45

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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.