Home / 13,533.21-20,281.28-7,612.97

Finding the Fourth Proportional to 13,533.21, 20,281.28 and 7,612.97

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Solution

The fourth proportional to 13,533.21, 20,281.28 and 7,612.97 is: 11,409.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.21 : 20,281.28 = 7,612.97 : x
  2. Step 2: Convert to fraction form
    13,533.21/20,281.28 = 7,612.97/x
  3. Step 3: Cross multiply
    13,533.21x = 20,281.28 × 7,612.97
  4. Step 4: Simplify right side
    13,533.21x = 154,400,636.73
  5. Step 5: Solve for x
    x = 154,400,636.73/13,533.21
  6. Step 6: Final answer
    x = 11,409.02

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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.