Home / 13,746.32-20,618.30-4,385.96

Finding the Fourth Proportional to 13,746.32, 20,618.30 and 4,385.96

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Solution

The fourth proportional to 13,746.32, 20,618.30 and 4,385.96 is: 6,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.32 : 20,618.30 = 4,385.96 : x
  2. Step 2: Convert to fraction form
    13,746.32/20,618.30 = 4,385.96/x
  3. Step 3: Cross multiply
    13,746.32x = 20,618.30 × 4,385.96
  4. Step 4: Simplify right side
    13,746.32x = 90,431,039.07
  5. Step 5: Solve for x
    x = 90,431,039.07/13,746.32
  6. Step 6: Final answer
    x = 6,578.56

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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.