Home / 13,745.32-20,617.86-4,980.04

Finding the Fourth Proportional to 13,745.32, 20,617.86 and 4,980.04

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Solution

The fourth proportional to 13,745.32, 20,617.86 and 4,980.04 is: 7,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.32 : 20,617.86 = 4,980.04 : x
  2. Step 2: Convert to fraction form
    13,745.32/20,617.86 = 4,980.04/x
  3. Step 3: Cross multiply
    13,745.32x = 20,617.86 × 4,980.04
  4. Step 4: Simplify right side
    13,745.32x = 102,677,767.51
  5. Step 5: Solve for x
    x = 102,677,767.51/13,745.32
  6. Step 6: Final answer
    x = 7,470.02

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1.5x scale

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.