Home / 13,389.39-20,096.55-6,820.50

Finding the Fourth Proportional to 13,389.39, 20,096.55 and 6,820.50

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Solution

The fourth proportional to 13,389.39, 20,096.55 and 6,820.50 is: 10,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.39 : 20,096.55 = 6,820.50 : x
  2. Step 2: Convert to fraction form
    13,389.39/20,096.55 = 6,820.50/x
  3. Step 3: Cross multiply
    13,389.39x = 20,096.55 × 6,820.50
  4. Step 4: Simplify right side
    13,389.39x = 137,068,519.28
  5. Step 5: Solve for x
    x = 137,068,519.28/13,389.39
  6. Step 6: Final answer
    x = 10,237.10

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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.