Home / 13,410.57-18,512.68-9,168.50

Finding the Fourth Proportional to 13,410.57, 18,512.68 and 9,168.50

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Solution

The fourth proportional to 13,410.57, 18,512.68 and 9,168.50 is: 12,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.57 : 18,512.68 = 9,168.50 : x
  2. Step 2: Convert to fraction form
    13,410.57/18,512.68 = 9,168.50/x
  3. Step 3: Cross multiply
    13,410.57x = 18,512.68 × 9,168.50
  4. Step 4: Simplify right side
    13,410.57x = 169,733,506.58
  5. Step 5: Solve for x
    x = 169,733,506.58/13,410.57
  6. Step 6: Final answer
    x = 12,656.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.