Home / 13,743.60-20,623.32-8,210.40

Finding the Fourth Proportional to 13,743.60, 20,623.32 and 8,210.40

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Solution

The fourth proportional to 13,743.60, 20,623.32 and 8,210.40 is: 12,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.60 : 20,623.32 = 8,210.40 : x
  2. Step 2: Convert to fraction form
    13,743.60/20,623.32 = 8,210.40/x
  3. Step 3: Cross multiply
    13,743.60x = 20,623.32 × 8,210.40
  4. Step 4: Simplify right side
    13,743.60x = 169,325,706.53
  5. Step 5: Solve for x
    x = 169,325,706.53/13,743.60
  6. Step 6: Final answer
    x = 12,320.33

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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.