Home / 10,720.36-16,080.06-2,929.18

Finding the Fourth Proportional to 10,720.36, 16,080.06 and 2,929.18

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Solution

The fourth proportional to 10,720.36, 16,080.06 and 2,929.18 is: 4,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.36 : 16,080.06 = 2,929.18 : x
  2. Step 2: Convert to fraction form
    10,720.36/16,080.06 = 2,929.18/x
  3. Step 3: Cross multiply
    10,720.36x = 16,080.06 × 2,929.18
  4. Step 4: Simplify right side
    10,720.36x = 47,101,390.15
  5. Step 5: Solve for x
    x = 47,101,390.15/10,720.36
  6. Step 6: Final answer
    x = 4,393.64

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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.