Home / 14,212.90-21,295.07-7,969.01

Finding the Fourth Proportional to 14,212.90, 21,295.07 and 7,969.01

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Solution

The fourth proportional to 14,212.90, 21,295.07 and 7,969.01 is: 11,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.90 : 21,295.07 = 7,969.01 : x
  2. Step 2: Convert to fraction form
    14,212.90/21,295.07 = 7,969.01/x
  3. Step 3: Cross multiply
    14,212.90x = 21,295.07 × 7,969.01
  4. Step 4: Simplify right side
    14,212.90x = 169,700,625.78
  5. Step 5: Solve for x
    x = 169,700,625.78/14,212.90
  6. Step 6: Final answer
    x = 11,939.90

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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.