Home / 13,695.17-20,551.25-8,768.34

Finding the Fourth Proportional to 13,695.17, 20,551.25 and 8,768.34

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Solution

The fourth proportional to 13,695.17, 20,551.25 and 8,768.34 is: 13,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.17 : 20,551.25 = 8,768.34 : x
  2. Step 2: Convert to fraction form
    13,695.17/20,551.25 = 8,768.34/x
  3. Step 3: Cross multiply
    13,695.17x = 20,551.25 × 8,768.34
  4. Step 4: Simplify right side
    13,695.17x = 180,200,303.58
  5. Step 5: Solve for x
    x = 180,200,303.58/13,695.17
  6. Step 6: Final answer
    x = 13,157.95

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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.