Home / 10,328.31-15,479.77-4,774.14

Finding the Fourth Proportional to 10,328.31, 15,479.77 and 4,774.14

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Solution

The fourth proportional to 10,328.31, 15,479.77 and 4,774.14 is: 7,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328.31 : 15,479.77 = 4,774.14 : x
  2. Step 2: Convert to fraction form
    10,328.31/15,479.77 = 4,774.14/x
  3. Step 3: Cross multiply
    10,328.31x = 15,479.77 × 4,774.14
  4. Step 4: Simplify right side
    10,328.31x = 73,902,589.15
  5. Step 5: Solve for x
    x = 73,902,589.15/10,328.31
  6. Step 6: Final answer
    x = 7,155.34

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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.