Home / 14,128.29-21,193.16-4,768.65

Finding the Fourth Proportional to 14,128.29, 21,193.16 and 4,768.65

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Solution

The fourth proportional to 14,128.29, 21,193.16 and 4,768.65 is: 7,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.29 : 21,193.16 = 4,768.65 : x
  2. Step 2: Convert to fraction form
    14,128.29/21,193.16 = 4,768.65/x
  3. Step 3: Cross multiply
    14,128.29x = 21,193.16 × 4,768.65
  4. Step 4: Simplify right side
    14,128.29x = 101,062,738.59
  5. Step 5: Solve for x
    x = 101,062,738.59/14,128.29
  6. Step 6: Final answer
    x = 7,153.22

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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.