Home / 14,231.40-21,345.09-8,950.31

Finding the Fourth Proportional to 14,231.40, 21,345.09 and 8,950.31

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Solution

The fourth proportional to 14,231.40, 21,345.09 and 8,950.31 is: 13,424.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.40 : 21,345.09 = 8,950.31 : x
  2. Step 2: Convert to fraction form
    14,231.40/21,345.09 = 8,950.31/x
  3. Step 3: Cross multiply
    14,231.40x = 21,345.09 × 8,950.31
  4. Step 4: Simplify right side
    14,231.40x = 191,045,065.75
  5. Step 5: Solve for x
    x = 191,045,065.75/14,231.40
  6. Step 6: Final answer
    x = 13,424.19

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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.