Home / 13,637.20-20,456.40-4,277.32

Finding the Fourth Proportional to 13,637.20, 20,456.40 and 4,277.32

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Solution

The fourth proportional to 13,637.20, 20,456.40 and 4,277.32 is: 6,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.20 : 20,456.40 = 4,277.32 : x
  2. Step 2: Convert to fraction form
    13,637.20/20,456.40 = 4,277.32/x
  3. Step 3: Cross multiply
    13,637.20x = 20,456.40 × 4,277.32
  4. Step 4: Simplify right side
    13,637.20x = 87,498,568.85
  5. Step 5: Solve for x
    x = 87,498,568.85/13,637.20
  6. Step 6: Final answer
    x = 6,416.17

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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.