Home / 14,061.63-21,150.77-12,720.27

Finding the Fourth Proportional to 14,061.63, 21,150.77 and 12,720.27

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Solution

The fourth proportional to 14,061.63, 21,150.77 and 12,720.27 is: 19,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,061.63 : 21,150.77 = 12,720.27 : x
  2. Step 2: Convert to fraction form
    14,061.63/21,150.77 = 12,720.27/x
  3. Step 3: Cross multiply
    14,061.63x = 21,150.77 × 12,720.27
  4. Step 4: Simplify right side
    14,061.63x = 269,043,441.51
  5. Step 5: Solve for x
    x = 269,043,441.51/14,061.63
  6. Step 6: Final answer
    x = 19,133.16

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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.