Home / 13,569.45-20,346.89-4,205.45

Finding the Fourth Proportional to 13,569.45, 20,346.89 and 4,205.45

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Solution

The fourth proportional to 13,569.45, 20,346.89 and 4,205.45 is: 6,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.45 : 20,346.89 = 4,205.45 : x
  2. Step 2: Convert to fraction form
    13,569.45/20,346.89 = 4,205.45/x
  3. Step 3: Cross multiply
    13,569.45x = 20,346.89 × 4,205.45
  4. Step 4: Simplify right side
    13,569.45x = 85,567,705.79
  5. Step 5: Solve for x
    x = 85,567,705.79/13,569.45
  6. Step 6: Final answer
    x = 6,305.91

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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.