Home / 10,405.05-15,598.80-4,855.47

Finding the Fourth Proportional to 10,405.05, 15,598.80 and 4,855.47

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Solution

The fourth proportional to 10,405.05, 15,598.80 and 4,855.47 is: 7,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.05 : 15,598.80 = 4,855.47 : x
  2. Step 2: Convert to fraction form
    10,405.05/15,598.80 = 4,855.47/x
  3. Step 3: Cross multiply
    10,405.05x = 15,598.80 × 4,855.47
  4. Step 4: Simplify right side
    10,405.05x = 75,739,505.44
  5. Step 5: Solve for x
    x = 75,739,505.44/10,405.05
  6. Step 6: Final answer
    x = 7,279.11

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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.