Home / 14,279.12-21,428.37-5,045.12

Finding the Fourth Proportional to 14,279.12, 21,428.37 and 5,045.12

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Solution

The fourth proportional to 14,279.12, 21,428.37 and 5,045.12 is: 7,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.12 : 21,428.37 = 5,045.12 : x
  2. Step 2: Convert to fraction form
    14,279.12/21,428.37 = 5,045.12/x
  3. Step 3: Cross multiply
    14,279.12x = 21,428.37 × 5,045.12
  4. Step 4: Simplify right side
    14,279.12x = 108,108,698.05
  5. Step 5: Solve for x
    x = 108,108,698.05/14,279.12
  6. Step 6: Final answer
    x = 7,571.10

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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.