Home / 14,342.40-21,502.62-6,939.36

Finding the Fourth Proportional to 14,342.40, 21,502.62 and 6,939.36

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Solution

The fourth proportional to 14,342.40, 21,502.62 and 6,939.36 is: 10,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,342.40 : 21,502.62 = 6,939.36 : x
  2. Step 2: Convert to fraction form
    14,342.40/21,502.62 = 6,939.36/x
  3. Step 3: Cross multiply
    14,342.40x = 21,502.62 × 6,939.36
  4. Step 4: Simplify right side
    14,342.40x = 149,214,421.12
  5. Step 5: Solve for x
    x = 149,214,421.12/14,342.40
  6. Step 6: Final answer
    x = 10,403.73

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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.