Home / 10,720.54-16,081.62-2,929.96

Finding the Fourth Proportional to 10,720.54, 16,081.62 and 2,929.96

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Solution

The fourth proportional to 10,720.54, 16,081.62 and 2,929.96 is: 4,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.54 : 16,081.62 = 2,929.96 : x
  2. Step 2: Convert to fraction form
    10,720.54/16,081.62 = 2,929.96/x
  3. Step 3: Cross multiply
    10,720.54x = 16,081.62 × 2,929.96
  4. Step 4: Simplify right side
    10,720.54x = 47,118,503.34
  5. Step 5: Solve for x
    x = 47,118,503.34/10,720.54
  6. Step 6: Final answer
    x = 4,395.16

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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.