Home / 13,752.21-20,628.27-4,987.11

Finding the Fourth Proportional to 13,752.21, 20,628.27 and 4,987.11

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Solution

The fourth proportional to 13,752.21, 20,628.27 and 4,987.11 is: 7,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.21 : 20,628.27 = 4,987.11 : x
  2. Step 2: Convert to fraction form
    13,752.21/20,628.27 = 4,987.11/x
  3. Step 3: Cross multiply
    13,752.21x = 20,628.27 × 4,987.11
  4. Step 4: Simplify right side
    13,752.21x = 102,875,451.60
  5. Step 5: Solve for x
    x = 102,875,451.60/13,752.21
  6. Step 6: Final answer
    x = 7,480.65

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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.