Home / 13,579.35-20,368.38-4,815.54

Finding the Fourth Proportional to 13,579.35, 20,368.38 and 4,815.54

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Solution

The fourth proportional to 13,579.35, 20,368.38 and 4,815.54 is: 7,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.35 : 20,368.38 = 4,815.54 : x
  2. Step 2: Convert to fraction form
    13,579.35/20,368.38 = 4,815.54/x
  3. Step 3: Cross multiply
    13,579.35x = 20,368.38 × 4,815.54
  4. Step 4: Simplify right side
    13,579.35x = 98,084,748.63
  5. Step 5: Solve for x
    x = 98,084,748.63/13,579.35
  6. Step 6: Final answer
    x = 7,223.08

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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.