Home / 13,105.60-19,661.13-4,341.20

Finding the Fourth Proportional to 13,105.60, 19,661.13 and 4,341.20

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Solution

The fourth proportional to 13,105.60, 19,661.13 and 4,341.20 is: 6,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.60 : 19,661.13 = 4,341.20 : x
  2. Step 2: Convert to fraction form
    13,105.60/19,661.13 = 4,341.20/x
  3. Step 3: Cross multiply
    13,105.60x = 19,661.13 × 4,341.20
  4. Step 4: Simplify right side
    13,105.60x = 85,352,799.25
  5. Step 5: Solve for x
    x = 85,352,799.25/13,105.60
  6. Step 6: Final answer
    x = 6,512.70

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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.