Home / 13,703.15-20,555.73-4,343.88

Finding the Fourth Proportional to 13,703.15, 20,555.73 and 4,343.88

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Solution

The fourth proportional to 13,703.15, 20,555.73 and 4,343.88 is: 6,516.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.15 : 20,555.73 = 4,343.88 : x
  2. Step 2: Convert to fraction form
    13,703.15/20,555.73 = 4,343.88/x
  3. Step 3: Cross multiply
    13,703.15x = 20,555.73 × 4,343.88
  4. Step 4: Simplify right side
    13,703.15x = 89,291,624.43
  5. Step 5: Solve for x
    x = 89,291,624.43/13,703.15
  6. Step 6: Final answer
    x = 6,516.14

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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.