Home / 13,279.19-19,922.21-4,959.27

Finding the Fourth Proportional to 13,279.19, 19,922.21 and 4,959.27

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Solution

The fourth proportional to 13,279.19, 19,922.21 and 4,959.27 is: 7,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.19 : 19,922.21 = 4,959.27 : x
  2. Step 2: Convert to fraction form
    13,279.19/19,922.21 = 4,959.27/x
  3. Step 3: Cross multiply
    13,279.19x = 19,922.21 × 4,959.27
  4. Step 4: Simplify right side
    13,279.19x = 98,799,593.59
  5. Step 5: Solve for x
    x = 98,799,593.59/13,279.19
  6. Step 6: Final answer
    x = 7,440.19

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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.