Home / 13,565.64-20,350.86-4,680.28

Finding the Fourth Proportional to 13,565.64, 20,350.86 and 4,680.28

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Solution

The fourth proportional to 13,565.64, 20,350.86 and 4,680.28 is: 7,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.64 : 20,350.86 = 4,680.28 : x
  2. Step 2: Convert to fraction form
    13,565.64/20,350.86 = 4,680.28/x
  3. Step 3: Cross multiply
    13,565.64x = 20,350.86 × 4,680.28
  4. Step 4: Simplify right side
    13,565.64x = 95,247,757.25
  5. Step 5: Solve for x
    x = 95,247,757.25/13,565.64
  6. Step 6: Final answer
    x = 7,021.25

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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.