Home / 9,720.20-14,582.10-3,146.60

Finding the Fourth Proportional to 9,720.20, 14,582.10 and 3,146.60

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Solution

The fourth proportional to 9,720.20, 14,582.10 and 3,146.60 is: 4,720.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.20 : 14,582.10 = 3,146.60 : x
  2. Step 2: Convert to fraction form
    9,720.20/14,582.10 = 3,146.60/x
  3. Step 3: Cross multiply
    9,720.20x = 14,582.10 × 3,146.60
  4. Step 4: Simplify right side
    9,720.20x = 45,884,035.86
  5. Step 5: Solve for x
    x = 45,884,035.86/9,720.20
  6. Step 6: Final answer
    x = 4,720.48

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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.