Home / 13,279.20-19,902.60-5,875.80

Finding the Fourth Proportional to 13,279.20, 19,902.60 and 5,875.80

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Solution

The fourth proportional to 13,279.20, 19,902.60 and 5,875.80 is: 8,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.20 : 19,902.60 = 5,875.80 : x
  2. Step 2: Convert to fraction form
    13,279.20/19,902.60 = 5,875.80/x
  3. Step 3: Cross multiply
    13,279.20x = 19,902.60 × 5,875.80
  4. Step 4: Simplify right side
    13,279.20x = 116,943,697.08
  5. Step 5: Solve for x
    x = 116,943,697.08/13,279.20
  6. Step 6: Final answer
    x = 8,806.53

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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.