Home / 14,243.86-21,357.96-4,380.40

Finding the Fourth Proportional to 14,243.86, 21,357.96 and 4,380.40

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Solution

The fourth proportional to 14,243.86, 21,357.96 and 4,380.40 is: 6,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.86 : 21,357.96 = 4,380.40 : x
  2. Step 2: Convert to fraction form
    14,243.86/21,357.96 = 4,380.40/x
  3. Step 3: Cross multiply
    14,243.86x = 21,357.96 × 4,380.40
  4. Step 4: Simplify right side
    14,243.86x = 93,556,407.98
  5. Step 5: Solve for x
    x = 93,556,407.98/14,243.86
  6. Step 6: Final answer
    x = 6,568.19

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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.